VS, a MIDI Vector Synthesis Oscillator, for GRAINS

I have added VS to my GRAINS repository. VS is a MIDI-based vector synthesis oscilllator with many of the original Prophet VS waves available. You can save your vector synthesis trajectory to EEPROM (the Arduino's little internal hard drive so to speak).

WARNING: I have done my level best to make sure that the EEPROM is only saved once after recording, and have a few safeguards, but if VS goes beserk and writes to the EEPROM a million times and burns it out, do not hold me responsible. It won't happen though.