Add some digikey order informations to components

Add some little changes to the schematic, add calculations

Move processor part a bit down

Improve Edge cuts

Add oval mounting holes to support NEMA23 as well as NEMA24

Improve board routing, add some dukos

Improve pcb

Scale image a bit

This project is now supported by the Shuttleworth Foundation

Improve pcb routing, add testpoints and etc. The design improves a lot. Still lots to do, but most important design parts should now be drafted almost complete.