Interact with neopixel LEDs in arcade machine

When the arcade feature is enabled. The arcade should communicate with the microcontroller to set patterns for the led strips.

Main menu, instructions: lights show transition between green and purple
Character selection: lights should be off and turn on green when the player on the corresponding side joins
Game:
- Flash red on corresponding side when damage taken to health
- Flash red on both sides when defense damage taken
- Flash blue when defense healed
- Otherwise fade between green and purple
Victory: exciting happy pattern!
Game over: sad pattern :(

thetawavegame / thetawave