gst: Add gst_register_deinit_notify() API
Add an API so that user can install a callback function to be called when gst_deinit() is executed, then performs library specific teardown operations such as clearing resources or reporting live objects.
Add an API so that user can install a callback function to be called when gst_deinit() is executed, then performs library specific teardown operations such as clearing resources or reporting live objects.