Omit unused parts of PAL.  Dos2unix...
named debugQreader thread
trimmed spaces
Do not repeat STM32l target initialization
Added DAC channel 1 test
Excersizes I/O for power supply enable, piezo buzzer, cell top threshold and power supply voltage control
Added Power Supply control.  Write status to serial port
added macros to define I/O more concisely
shortened ADC sample time from 48 to 16 cycles.  Added pad helper macros.