Sound-Track

# Initial release!
Sound-Track adds two types of Minecarts: Jukebox Minecarts and Note Block Minecarts.
Features:
## Jukebox Minecarts
- Can be interacted with like a normal Jukebox
- Can stop/start playback with activator rails
- Can read identical comparator value as Jukebox with detector rails

## Noteblock Minecarts
- Can be interacted with like a normal Noteblock
- Won't instantly break when hit in creative
- Can be played with an activator rail