Update VLCMediaLibraryKit
This updates the API implementation of VLCMediaLibraryKit following the update to 0.11.0.
Additionally, it moves the deletion of actual files from the file system from the app to the library. This is notably done to be able to do that on a background thread as currently the app is frequently killed by the watchdog daemon for locking the UI while deleting large numbers of files.
Finally, this introduces sorting artists by last playback date and by the number of albums synchronized and uses a newly introduced API to invalidate generated thumbnails.
Edited by Felix Paul Kühne