The big v2 beta merge

[scottbez1]

Lots of changes for v2 hardware, many of which are documented in the README already, but the big ones are:

• 52 flaps by default (fixed some dimensions to handle this parameter more correctly)
• New flap font settings, including using Epilogue for new v2 printed flaps
• v2 sensor PCB
  • SMD for assembly
  • Mounts to motor (1 fewer bolt/nut, removed physical adjustment)
• Software module home position calibration (rather than physically moving the sensor)