consolidated a few parts, setup BOM output for assembly

removed variants (not needed), polygons for ground and power added, mains keepouts added, drc errors fixed

processor and io expander routing finished

Removed numerous IO expanders no longer required for FP LEDs, Diodes on rail switching changed to FETs, window comp changed to open collector, 12V PSU changed to smaller footprint, changes pushed to PCB and routing started

Finished processor schematic, annotated components, ready to start PCB work

schematics largely done, still some work to do on processor and power supplies