Media Default Playback Rate

• The current 'playbackRate' and 'defaultPlaybackRate' should be logged every time either changes.
• 'playbackRate' should be set to 'defaultPlaybackRate' when the Play button in the built-in controls is pressed
• 'playbackRate' should NOT when play() is called from script.

defaultPlaybackRate = 2defaultPlaybackRate = 1playbackRate = 2playbackRate = 1

play()pause()