Initial commit of an MS5611 breakout board

This is an unfinished initial commit of a breakout board. The footprint
might be in a wrong module and it isn't connected to the net names yet.
Finish first version of the breakout board.
Adding Gerber files.
Correcting Gerbers for OSH Park

This version got sent to OSH Park. The silk screen had to be changed
to a min thickness of 5 mills.
Merge branch 'feature/ms5611-breakout' into develop

The breakout board finished it's first version and was sent
to OSH Park for manufacturing.