Modified charger board silkscreens for manufacturing

Tweaked BMS test board, added rev2 with swapped SPI mode resistors

Printed version of ext diagram

Made final changes to Charger Boards. Added a relay to Library

Added Reed Relay to library

Charger control board with modifications to control external relay board

HV Board: Added bypass caps to LTC6820 and SPI level shifter, rerouted under Teensy, rerouted GND/Power to 5V regulator, Silkscreen updates for mfg

Main ECU: tweak trace location, BMS: adjust silkscreen for manufacturing

Charger Control Board with suggested modifications

added jumper and added capacitor to 5v reg