split out different handlings of firmware.c
implement communication logic/known commands
split out SPI comminication implementation from firmware.c
implement Readtext from SPI
comment out "restart logic" on watchdog error
fix Charliplexing: "PINx" field 1 = change value, 0 stay on each write...
compiling as c++ from now on
Enable normal communication logic
add more status commands
optimize different parts
split out & implement watchdog logic
add Shieldversion 4 Logic
add ATMega communication & test mode