CameraX 1.4.0-beta01

Added ZoomGestureDetector.ZoomEvent to encapsulates the states of a zoom gesture. Fixed a bug that still capture and tap-to-focus do not use the repeating request FPS/stabilization mode values which may recreate capture session and cause latency issues or Preview freeze in some devices. Fixed a bug where High Resolutions can not be selected when CameraEffect is enabled on some devices. (e.g. 4000x3000 on Samsung A32 5G). Fixed a crash when taking picture with Preview, ImageCapture and VideoCapture(UHD) are bound on Pixel 4XL API29. Support virtual devices: Context passed into ProcessCameraProvider will preserve the device ID to ensure the functionality in a virtual device environment.