Refactor callstats removing improve static calls to Statistics.

You can call static Statistics methods which will internally handle callstats instances to send stats. Drops handlers and JitsiMeetJS references.

Logs recorder states to callstats

Sends additional logs to callstats.

Logs versions of components and library version. Logs shard and region if available.

Add ability to pass facingMode as option to JitsiMeetJS.createLocalTracks()

Reduce the dependency on HTML elements

Report DOMException when audio output device change fails as gUM error to callstats

Reports application error on unhandled errors.

Since React Native doesn't have HTML elements, depend on HTML element
properties and don't necessarily depend on them being properties on
actual HTML elements but rather assume plain JavaScript objects.

Adds all SRD/SLD to modifySourcesQueue and removes modifySourcesQueue…

Lipsync tests

Add initial support for React Native

Fixes track removal for NWJS

The react-native-webrtc implementation that we use on React Native (at
the time of this writing) provides a MediaStream (class) which:

- has no standard constructors but rather has a non-standard
constructor which requires a single argument that represents the id of
the MediaStream instance to initialize, and

- has an id value of type number rather than the standard string.

Tsareg handle create local tracks errors better

Log warning instead of error for audio output device change errors

Handle jibri errors and busy status

Do not subscribe each JitsiTrack to RTCEvents.AUDIO_OUTPUT_DEVICE_CHANGED event