xuning / livekitAndroidXuningTest

* Allow injection of PeerConnectionFactory.Options

* Spotless

* Selfie ML video processing examples

* spotless

* cleanup

* Don't emit RoomEvent.Reconnecting for resumes

* spotless

* Communication mode workaround

* clean up implementation

* tests and spotless

* Inject dispatcher

* Tie communication workaround to playout instead of record

* Allow registration of external cameras implementations

* Update livekit-android-sdk/src/main/java/io/livekit/android/room/track/video/CameraCapturerUtils.kt

* Update livekit-android-sdk/src/main/java/io/livekit/android/room/track/video/CameraCapturerUtils.kt

* Remove internal and suppress tags to make camera capturers public

* Update CameraEventsDispatchHandler.kt

* spotless

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Co-authored-by: davidliu <davidliu@deviange.net>

* Prefix webrtc to avoid collisions with other libraries

* Prepare for v2.0.0

* Move test webrtc files as well

* Revert java target to Java 1.8

* Remove LiveKit.connect method

* Rename participant's track variables to trackPublication to accurately reflect type

* update protocol submodule

* Change remoteParticipants to identity keys

Also add in the Participant Sid/Identity value classes to prevent mistakes

* change publishData to take in Identity type

* Move to android-prefixed webrtc library

* Make inline value classes serializable

* Fix publishdata send to identity destination

* Support sync stream id

* Remap LivekitModels.VideoQuality to VideoQuality enum

The new VideoQuality enum exposes only the ones that should be used by consumers

* Suspend function for getSid

* spotless

* fix compile

* Add documentation and internal visibility for internal classes

* Use audio source VOICE_COMMUNICATION for echo cancelling

* Spotless

This was causing confusion in users who expected it to overwrite the existing room options

* Force all rtc related calls onto a single dedicated thread

* Fix test issues

* clean up long lock

* Move any callbacks from peerconnection api into local RTC thread

* Spotless

* Separate DataChannel Observer into independent objects

unregisterObserver directly deletes the natively wrapped observer.
Previous implementation should be fine, but moving to independent for memory safety

* Spotless

Also update Okhttp to 4.12.0 to fix r8 issues.

* Add more mutexes surrounding peerconnection usage

* proper locking for response flow job

* Fix race condition in CoroutineSdpObserver

* Lock down peer connection usage

* spotless apply

* Exclude ReentrantMutex from spotless

* Fix tests

* spotless apply