Add support for multiple instruments

First did a rename refactor:

Rename/Refactor

JerkyTreats

Then moved on to bust out support for multiple Drum instruments: Kick, Snare, HiHatOpen, HiHatClosed, Clap.

Also added 14 drum patterns for each of the above. Big effort.

Currently compiles, still chasing down bugs. About another hour or 2 and the drum machine should be pretty well awesome.

Add support for multiple instruments; Add >10 beat patterns

JerkyTreats