Sometimes we might want host-side software to control it, or even to just turn it off.

This is necessary for reprogramming a Fadecandy board without access to the physical button.

Technically this isn't minimal, but it's really something most people will want.

After discussing with Ping, changed the format of the color correction command to use a MIDI-style SysEx command in OPC.

The server now works end-to-end, yay.

The firmware is feature-complete now, and this will save folks the trouble of downloading a huge toolchain. Plus I like to keep tabs on the quality of the assembly output :)