Major GUI update.

It's been far too long since I've committed an update. This includes
first cut at audio player (~80% complete) and playlist (~60%) complete.

Audio Player TODO:
 - Track Year not incorporated ... maybe remove from the display
 - When progressing from one track to the next, play the animation
     right before switching tracks.

Playlist TODO:
 - Implement scrolling data.
 - Set empty cells when below N entries.
 - Fix add to playlist - should copy, not move data.