[CGMZ] Jukebox - Version Alpha R3

Hi all, today this plugin was updated to version AlphaR3!
This version adds the option to show undiscovered tracks. This is part of the scene call script call. Undiscovered tracks have a separate display name, icon, and description. They will be unselectable in the scene, and serve as a way to show the player if they are missing any tracks.
This update also adds the option to have a Stop command at the very top of the jukebox track list, which will stop the currently playing track and replay the music that was originally playing when the scene started.
- Added option to show undiscovered tracks
- Added option to have a Stop option at the top of the jukebox list