change IC-SOCKET holes to 0,7 mm

change socket holes to 0,7 mm, and created BOM

component details from Digi-Key chosen

i don"t know why, but a fb-info-cache is added

fab layer drawing checked, chip socket outline is still missing

1st version routed

add mounting holes, add fiducials

removed level-shifters, because test equipment is able to run signals directly at the required 1.2 V

SCH: selected footprints for components

GIT: Pulled new version of library (git submodule)