revC1: final adjustments to fab layers

revC1: move via away from Sync Whoops. Nothing to see here, please move along.

revC1: update README 3D render.

revC1: add G/S labels under Sync connector, judge surrounding vias

revC1: another minor tweak around AUX area

revC1: move AUX and J10 silkscreen labels

revC1: replace Sync connector with proper Molex KK footprint

Add Molex_KK-254_1x02_P2.54mm_Horizontal footprint Modified from upstream _Vertical version

Add Molex_KK-254_1x02_P2.54mm_Horizontal.wrl 3D model Modified from upstream kicad libs: Connector_Molex.3dshapes/Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical.wrl Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x02_P2.54mm_Horizontal.wrl

revC1: nudge two vias around the ESD diode arrays