Load & autoplay patches via midi

[kraftf]

@danngreen

Ok, yeah something like this is possible. Maybe start it more simple at first like autoload/PC099-patchname.yml and limit it to PC events. At least that would let us get auto-loading running, and later we can add a more streamlined UI and attach to other events besides MIDI.

HI there! Would it be possible to use PG events along MSB-LSB values? MSB values would correspond to folders listed alphabetically that can contain up to 128 patches.