FIX: properly play media sound on image capture

[KryptKode]

Notes

• 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 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

[tibbi]

the shutter sound is good now, but the screen dimming still happens right after pressing photo capture. Lets make sure that screen dimming happens together with the shutter sound.