Added ENVY 9 and other updates

fixed some startup issues

Initial 0.6 build

Final VCV Rack 0.4.0 support

added 16 programs per keyboard to Triad Seq

added 3ch osc

added aux to mixer2

Updated Triad Seq with Glide and Trigger toggle

Added Synth Drums

Added 4x4 mixer 2 with EQ