All data is transfered serial. This makes everything more compact, but a bit slower (about n ticks slower (where n is the number of bits)).

Done:
- Keyboard completely finished, except for right binary
- 1 Display unit logic, bottom 8 digits are wired.

To-do:
- 6bit keyboard serial to 2 times 8-bit display serial
- display selector (shifting the serial signal)
- Expanding the display unit to a full screen when finished.
- Asigning the right binary codes to the keys, now it is all 111111.