[crashlytics]
Fixes: #1643, #1848, #1964, #1920, #1884, #1783, #1966, #1940, #1447
Features/Bugs Todo:
Capture JS Exceptions with stack traces automatically
Capture Unhandled Promise Rejections with stack traces automatically
[Android] .crash() not captured in debug due to RN RedBox; see #1921
Support advanced user identifier features
[Android] Enable Crashlyics NDK reporting by default (gist)
Support toggling native crash logging off/on (e.g. disable in DEV)
Support toggling JS crash logging off/on (e.g. disable in DEV)
[ios] Static framework support for all modules
[ios] Implement CocoaPods Firebase RN modules auto-loader script
Implement firebase.json config loader; Android & iOS
[tests] Fix false positive tests that catch errors (tests did not check that errors actually threw)
[android] Cleanup manifest permissions for all modules
[android] Implement Content provider base class
[android] Investigate/fix issue where setDataCollectionDefaultEnabled is false by default in Firebase - it disables Crashlytics reporting
