- update to use the DisplayOrientedMeteringPointFactory
- add Auto Focus (AF) and Auto Exposure (AE) metering points
- unbind VideoCaptureUseCase when in photo mode
- unbind ImageCaptureUseCase when not in photo mode
- add MediaSoundHelper to separate logic for playing media action sounds
- add support for playing media action sounds (shutter, start and stop recording) in CameraXPreview
- add CameraXPreview
- basic support image capture
- basic support for video capture
- add CameraXPreviewListener to prevent coupling to MainActivity
- support switching camera, flash light modes
- modify MyPreview interface to add default implementation for methods not needed by the CameraXPreview