Integrated ethernet on pcb

Did some changes to pcb.

Differenses to KaupoiMOD v4.1 are:
-Mounting holes for SwitchBlox ethernet switch module
-Dedicated +12v out and ground pins for SwitchBlox
-Bigger size: 99,06mm x 106,68mm

KaupoiEthMOD_20210316

EDIT:
Gerber files can be found from here: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.