Copy routed version of PCB to CRAMPS.kicad_pcb
The board is unlikely to need a completely new pass through the
autorouter, and this will make the design directory behave as expected
for most folks (ie: launching Pcbnew from the KiCad project manager
will actually open the proper version of the board for minor updates).

Signed-off-by: Charles Steinkuehler <charles@steinkuehler.net>