xuning / livekitAndroidXuningTest

* Fix compile errors with m125

* Update default encryption option values

* Update webrtc to m125.6422.02

* spotless

* Fix setScreenShareEnabled not starting the screen share track

* Increase build memory size

* Expose Participant.Kind information

* spotless

This reverts commit 879ddb3b.

* KDocs for undocumented methods

* More KDocs

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* Cache target zoom value for more accuracy while zooming

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* Call CameraSession.Events.onCameraClosed when session stops

* Documentation for ScaleZoomHelper

* Rename getCameraProvider to createCameraProvider to clarify behavior

* Clean up and example gesture zoom feature

* spotless

* fix build

* Allow registration of external cameras implementations

* CameraX sample integration

* create livekit-android-camerax module

* spotless

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

* Allow setting of degradation preference

* fix tests

* spotless

* Render video directly from capturer for local video tracks

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* Add some audio convenience functions

* Fix tests

* Add camera/mic service types to sample foreground service

* spotless