Add constructor with IP address

[josesimoes]

Description

• Add parameter to WebServer constructor and rework constructors accordingly.
• Update README to add note for this new parameter.

Motivation and Context

• When calling HttpListener with a null IPAddress parameter the code grabs the IP from the default interface. When serving pages from a soft AP, the IP address is different. Therefore, it's necessary to allow the caller to specify an IP address to bind the server to.

How Has This Been Tested?

• Local app testing HTTP access to server behind an ESP32 soft AP.

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue with code or algorithm)
• New feature (non-breaking change which adds functionality to code)
• Breaking change (fix or feature that would cause existing functionality to change)
• Config and build (change in the configuration and build system, has no impact on code or features)
• Dependencies (update dependencies and changes associated, has no impact on code or features)
• Unit Tests (add new Unit Test(s) or improved existing one(s), has no impact on code or features)
• Documentation (changes or updates in the documentation, has no impact on code or features)

Checklist:

• My code follows the code style of this project (only if there are changes in source code).
• My changes require an update to the documentation (there are changes that require the docs website to be updated).
• I have updated the documentation accordingly (the changes require an update on the docs in this repo).
• I have read the CONTRIBUTING document.
• I have tested everything locally and all new and existing tests passed (only if there are changes in source code).
• I have added new tests to cover my changes.

[coderabbitai]

Important

Review skipped

Review was skipped due to path filters

⛔ Files ignored due to path filters (2)

• README.md is excluded by !**/*.md and included by none
• nanoFramework.WebServer/WebServer.cs is excluded by none and included by none

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Note

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[Copilot]

Pull Request Overview

This PR adds support for specifying an IP address when creating a WebServer instance, which is necessary for scenarios where the server needs to bind to a specific interface (e.g., when serving from an ESP32 soft access point). The changes introduce a new constructor parameter while maintaining backward compatibility through constructor chaining.

Key Changes

• Added a new constructor parameter for IP address binding in the WebServer class
• Updated existing constructors to chain to the new comprehensive constructor
• Updated README documentation to mention the new optional IP address parameter

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
nanoFramework.WebServer/WebServer.cs	Added IP address parameter to constructors and updated HttpListener instantiation
README.md	Added documentation note about optional IP address parameter

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Ellerbach]

looks good to me