- instead of using the OnImageSavedCallback, we now use the OnImageCaptureCallback and we play the sound in the onCapturedSuccess method to prevent the user from hearing the capture sound before the actual capture takes place
- add ImageSaver and ImageUtil based on CameraX implementation
- add sealed interfaces ImageCaptureOutput and VideoCaptureOutput to prevent confusion on the supported output format for images and video
- ImageSaver supports saving images with all MediaOutput.ImageCaptureOutput that can be saved to disk; MediaStoreOutput, OutputStreamMediaOutput and FileMediaOutput (unused at the moment), it throws an UnsupportedOperation when trying to save a BitmapOutput.
- with ImageSaver, we now have control of whether the Exif attributes are written to disk and so we can get rid of ExifRemover
- delete the extension method ImageProxy.toJpegByteArray as we have a similar method in ImageUtils class
- add a new BitmapOutput, returned from the MediaOutputHelper when no output URI is specified in an IMAGE_CAPTURE intent
- in this format, take the picture without actually saving it and return the bitmap
- this behaviour is consistent with the implementation described in the official Android docs https://developer.android.com/training/camera/photobasics#TaskPhotoView
- in MediaOutputHelper,
- add support for specifying the output URI if present in the intent
- when the output URI is specified,
- for Image Capture, we return a `Bitmap` as a `data` extra and also the URI as the Intent data
- for Video Capture we return the `Uri` as the Intent data
- if no output URI is specified in the capture intent or if there is an error while trying to access the URI, use the default location with MediaStore, so we do not return inconsistent URIs (eg, SAF tree URIs)
- add CameraXInitializer to abstract CameraXPreview initialisation logic
