Add definitions for all I/O pins
Clean up top-level mcu code
Eliminate unused BMP085 ctor sensorID parameter
Add a 32-bit sequence number to data packets and read out ADC channels with 64x oversampling
Read data packet sequence number in server
Flash red LED when boot packet sent to help debug startup packet assembly problems
Reduce baud rate from 115200 to 76800 since this should be more accurately synthesized from 10MHz
Detect packet sequence errors and rework packet assembly console output messages