Many updates:
- Added Ardunio I2C support
- Added "extra" led support on Ardunio I2C registers
- Everything is compiled as C++ now
- Added Arduino defines (includes.h) to make code used from Arduino libraries easier to port
- Added crude update screen to show status of running program

Notes:
- Compass still not working. Monkey'd with calibration routine and even skipped it. Nothing seems to help.
- ID of compass not H43 but comes back as H3* where * is junk.