v1 PCB for SAO

Our v1 prototype was the first to have a custom PCB.  We ordered it fully assembled by JLCPCB and hedged our bets and included a Feather footprint incase we messed up the microcontroller circuitry.  The artwork for v1 was a great start.  And we learned a lot about how PCB manufacturers may alter what your artwork looks like from the computer screen.  Silkscreen will never be put on top of exposed copper, and we found that out the hard way.  Also, we found out the i2c client pins were connected to incompatible pins on the SAO, so we had to revise some of our pin assignments.  We included a piezo buzzer on v1, but removed it because we felt like SAOs shouldn't make noise.  But everything pretty much worked otherwise!   it was an exiting time to receive this board.  We included two sizes of neopixels on v1 to see how they performed.  We decided to stick with the smaller 1mm x 1mm LEDs (seen on left eye)