Builds font header file from PNGs
Futura implemented
Font translator
Glyps used in futura
Font translator
Display abstraction

Provides a display abstraction for the EPD, with a display buffer, time display functions etc
Optimising power.

Improving the sleep modes
Cleanin up the usart code
Prototye watch implementation

Sleeps for a miute, wakes up, displays time.  In flux to test things and optimise power a bit.