RUM-11120: Add battery and display attributes

[jonathanmos]

What does this PR do?

Adds some battery and display attributes to view updates. The following fields were added:

battery_level: The current battery charge level, expressed as a float from 0.0 (empty) to 1.0 (full). This is to align with ios, so we lose some granularity as android can measure to within 1% of the battery level while ios shows only to the nearest 10%. Monitored by polling once every 60 seconds - it didn't seem a good idea to register a listener as the listener was firing sometimes multiple times per second.

low_power_mode: A boolean indicating whether the device is currently in Low Power Mode. Monitored with a broadcast receiver.

brightness_level: The current screen brightness, normalized as a float between 0.0 (darkest) and 1.0 (brightest). Monitored with a content observer.

Motivation

Part of adding metadata fields.

Additional Notes

Refactor of the architecture of the info providers since we now have three providers (accessibility/battery/display) - all classes now implement the InfoProvider interface and use the same generic NoOp class. The generic interface returns a kv map and we use the concrete data classes to convert between the objects and this representation.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 85.64815% with 31 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.09%. Comparing base (c6b7a43) to head (7153c75).

Files with missing lines	Patch %	Lines
...ernal/domain/battery/DefaultBatteryInfoProvider.kt	79.07%	6 Missing and 3 partials ⚠️
...ernal/domain/display/DefaultDisplayInfoProvider.kt	77.42%	6 Missing and 1 partial ⚠️
...m/internal/domain/display/SystemSettingsWrapper.kt	41.67%	7 Missing ⚠️
...cessibility/DefaultAccessibilitySnapshotManager.kt	92.59%	1 Missing and 1 partial ⚠️
...al/domain/accessibility/NoOpAccessibilityReader.kt	33.33%	2 Missing ⚠️
...internal/domain/battery/NoOpBatteryInfoProvider.kt	33.33%	2 Missing ⚠️
...internal/domain/display/NoOpDisplayInfoProvider.kt	33.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2815      +/-   ##
===========================================
- Coverage    70.15%   70.09%   -0.06%     
===========================================
  Files          834      843       +9     
  Lines        31296    31442     +146     
  Branches      5259     5261       +2     
===========================================
+ Hits         21955    22037      +82     
- Misses        7886     7922      +36     
- Partials      1455     1483      +28     

Files with missing lines	Coverage Δ
...rum/src/main/kotlin/com/datadog/android/rum/Rum.kt	88.89% <100.00%> (+0.36%)	⬆️
...lin/com/datadog/android/rum/internal/RumFeature.kt	92.88% <100.00%> (-0.29%)	⬇️
...internal/domain/accessibility/AccessibilityInfo.kt	100.00% <100.00%> (ø)
...domain/accessibility/DefaultAccessibilityReader.kt	97.73% <100.00%> (ø)
...android/rum/internal/domain/battery/BatteryInfo.kt	100.00% <100.00%> (ø)
.../rum/internal/domain/battery/SystemClockWrapper.kt	100.00% <100.00%> (ø)
...android/rum/internal/domain/display/DisplayInfo.kt	100.00% <100.00%> (ø)
...d/rum/internal/domain/scope/RumApplicationScope.kt	95.65% <100.00%> (+1.16%)	⬆️
...droid/rum/internal/domain/scope/RumSessionScope.kt	96.15% <100.00%> (+0.12%)	⬆️
...d/rum/internal/domain/scope/RumViewManagerScope.kt	92.66% <100.00%> (+0.76%)	⬆️
... and 9 more

... and 28 files with indirect coverage changes

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