Add nfc support

[bparth24]

Replaces PR#93 - feedback addressed, rebased cleanly on main.

Note: Once this PR is approved and merged - PR#93 should be closed without merging.

Further details on test case results:

presentations.sign()
    ✔ should successfully sign a presentation with default cryptosuite "eddsa-rdfc-2022" if no "acceptedCryptosuites" is provided.
    ✔ should successfully sign a presentation with default cryptosuite "eddsa-rdfc-2022" if "acceptedCryptosuites" is an empty array.
    ✔ should successfully sign a presentation with updated default signature suite if wallet signatureSuite config is changed.
    ✔ should successfully sign a presentation with "acceptedCryptosuites" "eddsa-rdfc-2022".
    ✔ should successfully sign a presentation with "acceptedCryptosuites" "Ed25519Signature2020".
    ✔ should successfully sign a presentation with the first type specified in the "acceptedCryptosuites" list if all are supported.
    ✔ should successfully sign a presentation with the supported type from the "acceptedCryptosuites" list.
    ✔ should fail to sign a presentation if all the types specified in the "acceptedCryptosuites" list are unsupported.
  NFC Renderer
    supportsNfc()
      Valid NFC Detection
        ✔ should return true for TemplateRenderMethod with outputPreference.mode containing "nfc"
        ✔ should return true when mode array contains multiple values including "nfc"
        ✔ should return true when renderMethod is an array with one NFC-compatible method
        ✔ should return true with full TemplateRenderMethod structure
      Invalid NFC Detection - Missing Required Fields
        ✔ should return false when template is missing (pre-filters invalid methods)
        ✔ should return false when outputPreference is missing
        ✔ should return false when outputPreference.mode is missing
        ✔ should return false for credential without renderMethod
        ✔ should return false for credential with non-NFC renderMethod
      Invalid NFC Detection - Malformed outputPreference
        ✔ should return false when mode is a string instead of array
        ✔ should return false when mode array is empty
        ✔ should return false when mode array does not contain "nfc"
        ✔ should return false when mode value is case-different ("NFC")
      Legacy Format - NfcRenderingTemplate2024
        ✔ should return true for legacy NfcRenderingTemplate2024 with payload field
        ✔ should return false for NfcRenderingTemplate2024 without payload field
        ✔ should return false for NfcRenderingTemplate2024 using template field instead of payload
    renderToNfc() - Template Decoding
      Multibase Encoding
        ✔ should decode base58 multibase template (z prefix)
        ✔ should decode base64url multibase template (u prefix)
      Data URL Encoding
        ✔ should decode data URL with base64 encoding
        ✔ should decode data URL with complex base64 payload
      Field Priority
        ✔ should use template field and ignore payload field for TemplateRenderMethod
      Decoding with renderProperty
        ✔ should decode template when renderProperty is present
        ✔ should decode template with multiple renderProperty fields
    renderToNfc() - renderProperty Validation
      Template Requirement
        ✔ should fail when only renderProperty exists without template
      Field Existence Validation
        ✔ should succeed when renderProperty references existing field
        ✔ should fail when renderProperty references non-existent field
        ✔ should validate all fields when multiple renderProperty pointers
        ✔ should fail if any renderProperty pointer is invalid
      Optional renderProperty
        ✔ should succeed when renderProperty is missing
        ✔ should succeed when renderProperty is empty array
      Nested Field Access
        ✔ should validate deeply nested renderProperty pointers
        ✔ should fail when nested path does not exist
    renderToNfc() - Error Cases
      Missing Credential or RenderMethod
        ✔ should fail when credential has no renderMethod
        ✔ should fail when credential parameter is missing
      Invalid Data URL
        ✔ should fail when data URL has wrong media type
        ✔ should fail when data URL format is malformed
        ✔ should fail when data URL encoding is unsupported
        ✔ should fail when base64 data is invalid
      Invalid Multibase Encoding
        ✔ should fail when template has unknown encoding format
      Invalid Template Type
        ✔ should fail when template is an object instead of string
        ✔ should fail when template is a number
        ✔ should fail when template is null
    Data Model - TemplateRenderMethod Structure
      type Field
        ✔ should fail when type is not TemplateRenderMethod
        ✔ should fail when type field is missing
      renderEngine Field
        ✔ should succeed with renderEngine set to "fixed"
        ✔ should succeed with unknown renderEngine value (ignored)
      outputPreference.mediaType Field
        ✔ should succeed with mediaType set to application/octet-stream
        ✔ should succeed without mediaType (optional field)
        ✔ should succeed with different mediaType value (not enforced)
      Unknown Fields Handling
        ✔ should ignore unknown fields in renderMethod
        ✔ should ignore unknown fields in outputPreference
      Complete Structure
        ✔ should succeed with all optional fields present
        ✔ should succeed with minimal required fields only
      Multiple Render Methods
        ✔ should select NFC method from array of render methods
        ✔ should use first NFC method when multiple exist
    Legacy Format - NfcRenderingTemplate2024
      Rendering with payload Field
        ✔ should render legacy format with base58 multibase payload
        ✔ should render legacy format with base64url multibase payload
        ✔ should render legacy format with data URL payload
      Field Handling
        ✔ should fail when using template field instead of payload
        ✔ should use payload and ignore template when both present
        ✔ should ignore unknown fields in legacy format
      Coexistence with TemplateRenderMethod
        ✔ should select legacy format from mixed render method array
        ✔ should prefer TemplateRenderMethod over legacy when both have NFC
        ✔ should fallback to legacy when TemplateRenderMethod lacks NFC mode
      Error Cases
        ✔ should fail when payload encoding is invalid
        ✔ should fail when payload is not a string
LOG: 'EAD Credential loaded from URL'
    Integration - Real Credentials
      EAD Credential (Legacy NfcRenderingTemplate2024)
        ✔ should have NfcRenderingTemplate2024 type in renderMethod
        ✔ should detect NFC support for EAD credential
        ✔ should render EAD credential to NFC bytes
LOG: 'FirstResponder Credential loaded from URL'
      FirstResponder Credential (TemplateRenderMethod)
        ✔ should have TemplateRenderMethod with NFC mode in renderMethod
        ✔ should detect NFC support for FirstResponder credential
        ✔ should render FirstResponder credential to NFC bytes
LOG: 'EAD renderMethod types:', ['SvgRenderingTemplate2024', 'NfcRenderingTemplate2024']
LOG: 'EAD NFC method fields:', ['type', 'payload']
      Credential Structure Inspection
        ✔ should log EAD credential renderMethod structure
LOG: 'FirstResponder renderMethod types:', ['SvgRenderingTemplate2024', 'TemplateRenderMethod']
LOG: 'FirstResponder NFC method fields:', ['type', 'renderEngine', 'renderProperty', 'name', 'outputPreference', 'template']
LOG: 'FirstResponder NFC outputPreference:', Object{mode: ['nfc'], mediaType: 'application/octet-stream'}
        ✔ should log FirstResponder credential renderMethod structure

Finished in 2.529 secs / 0.342 secs

SUMMARY:
✔ 82 tests completed
All tests passed.

[dlongley]

We need a CHANGELOG entry for a minor release that adds bundled nfcRenderer support.

[bparth24]

We need a CHANGELOG entry for a minor release that adds bundled nfcRenderer support.

@dlongley

Addressed in this commit - 91e29f1

[codecov-commenter]

Codecov Report

❌ Patch coverage is 78.02198% with 20 lines in your changes missing coverage. Please review.
✅ Project coverage is 16.52%. Comparing base (d855d6d) to head (91e29f1).

Files with missing lines	Patch %	Lines
lib/utilBrowser.js	15.38%	11 Missing ⚠️
lib/nfcRenderer.js	90.78%	7 Missing ⚠️
lib/helpers.js	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #98      +/-   ##
==========================================
+ Coverage   10.58%   16.52%   +5.94%     
==========================================
  Files          22       24       +2     
  Lines        1011     1071      +60     
==========================================
+ Hits          107      177      +70     
+ Misses        904      894      -10     

Files with missing lines	Coverage Δ
lib/helpers.js	41.17% <0.00%> (+11.27%)	⬆️
lib/nfcRenderer.js	90.78% <90.78%> (ø)
lib/utilBrowser.js	15.38% <15.38%> (ø)

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