RUM-2878: Report fatal ANRs

[0xnm]

What does this PR do?

This PR adds support of reporting fatal ANRs (ANR which resulted in the Application Not Responding dialog where user decided to close the application).

This functionality relies on the ApplicationExitInfo API (available since Android API 30), which can be read on the next application run. So in that sense it is similar to the approach we have to report NDK crashes: on the next application run we need to run this information and match it with the last RUM view event we know.

Since we cannot mark a particular ApplicationExitInfo as read in the system, we have to store the timestamp of the last ApplicationExitInfo we processed to avoid the possible delivery on the next application run.

When processing ApplicationExitInfo, we will read trace information attached to it and try to parse it (it is non-structured log).

This PR doesn't add the possibility to disable reporting of non-fatal (or unknown) ANRs, and it doesn't add error.category info, this will be done in next PRs.

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

Merging #1909 (5ffa623) into develop (f46eb76) will increase coverage by 0.05%.
Report is 6 commits behind head on develop.
The diff coverage is 85.33%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1909      +/-   ##
===========================================
+ Coverage    83.38%   83.43%   +0.05%     
===========================================
  Files          477      478       +1     
  Lines        16922    17124     +202     
  Branches      2514     2558      +44     
===========================================
+ Hits         14109    14286     +177     
- Misses        2120     2135      +15     
- Partials       693      703      +10     

Files	Coverage Δ
.../kotlin/com/datadog/android/api/feature/Feature.kt	100.00% <ø> (ø)
...ain/kotlin/com/datadog/android/core/DatadogCore.kt	84.49% <100.00%> (+0.80%)	⬆️
...l/net/info/BroadcastReceiverNetworkInfoProvider.kt	93.88% <100.00%> (ø)
...e/internal/net/info/CallbackNetworkInfoProvider.kt	95.24% <100.00%> (ø)
...id/core/internal/system/BuildSdkVersionProvider.kt	100.00% <100.00%> (ø)
...dog/android/ndk/internal/DatadogNdkCrashHandler.kt	82.14% <100.00%> (+0.79%)	⬆️
...om/datadog/android/ndk/internal/NdkCrashHandler.kt	100.00% <ø> (ø)
...dog/android/ndk/internal/NdkCrashReportsFeature.kt	67.31% <100.00%> (ø)
...ndroid/rum/internal/DefaultAppStartTimeProvider.kt	100.00% <100.00%> (ø)
.../android/rum/internal/monitor/DatadogRumMonitor.kt	84.52% <100.00%> (ø)
... and 10 more

... and 17 files with indirect coverage changes

[xgouchet]

Nice job