* Keyboard interconnect using two uarts
* Supports daisy chain addressing using a master/slave direction communication scheme
- Still needs more testing
- Functions have been tested alone to be generally working
- Split layer capability into different parts
- Convenience Shift, Latch, Lock
- Keeping the original capability because it also allows specifically turning layers off and is useful for debugging
- Code should be working, but much is untested
- All of the old modules will need to update and use the new DefaultMap keymap
- There might still be some naming conflicts with some Scan Modules
