Added pullup+down to the PCF Addr lines, CGND connected through RC to GND near PSU

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

Initial layout of power supplies, added mounting holes and shifted channels to accomodate them

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

Added some headers, finished power supplies, fixed up negative rail measurement

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