* Add diagnostics to stream's Stream objects Add diagnostics key/value pair to the Stream object. Diagnostics support in camera integration will be added in a follow up and will access the diagnostics on the Stream object, similar to the examples in the unit test. * Rename to audio/video codec * Fix test codec names * Update tests/components/stream/test_worker.py Co-authored-by: uvjustin <[email protected]> Co-authored-by: Paulus Schoutsen <[email protected]> Co-authored-by: uvjustin <[email protected]>