Changes to allow CK Inverter to work with gear and enable status set by rest of code (instead of being hardcoded)

Fixes for CANIO, fixes and clean up for system EEPROM settings, addition of a module to use for vehicle specific code

Changed tick handler and device manager classes to be stack allocated instead for ease of development

Added more advanced CAN handler from ArduinoDue / Private branch. Now can do CANOpen as well. Added PowerKeyPro device driver.

Switch system I/O functionality to a class instead of bare C++ functions. Add ability to register CAN connected I/O into the system.

Added ability to retrieve changed BLE characteristics and use them to update the system

Fixed timeRunning, sped up and reorganized characteristic updates

Added a test throttle and test inverter that can be used to test the new BLE system without actual hardware or can be used for testing. Fixed up some BLE bugs.

Added a few more data items to BLE data comm. Added state of charge to BatteryManager - no idea why it wasn't already there.

Merge branch 'master' of github.com:collin80/GEVCU