* Added High Voltage Management to powertrain file.
* Removed non high voltage items.
Added units.
* Fixed up cell voltages to be right.
Trying to decipher the rest of Pack_stats, charger_stats.
Added Charger command and parameters, Coolant_temp, AC_stats (needs scaling),
some unknown message that is either connection or charging indicator.
* Add messages for Chevy Volt APM 14V Power Modules on the Powertrain
expansion bus
* Add pack_current signal to BECM
* remove trailing whtiespace
streber42