* Fix deploy CI trigger
* Use actions/checkout@v2
* Call onImageAvailable on a separate thread
* Add setFrameProcessingPoolSize API
* Add setFrameProcessingExecutors API
* Ensure captures are not blocked by frame processing
* Wait for first frame in onStartPreview
* Enable abortCaptures()
* Improve testFrameProcessing_format
* Improve testFrameProcessing_format again