Switch to 12x divisor (the lowest we can go - 1MHz sampling) and disabled secondary 64 position buffer that isn't necessary and just slows down the readings.
Moved ADC configuration to EEPROM for PotThrottle and PotBrake. This makes all devices have parameter-less constructors.
Continuation from last commit - now devices are instantiated in each device's CPP file and always added to DeviceManager.

Devices are however always checked to see if they are enabled before sending messages or setting them up as the default device to use for their class. This simplifies writing device drivers since one needn't add the device to GEVCU.ino anymore in order for it to work. In coming updates the devices will also automatically add themselves to the list of devices you can use in SerialConsole. The end goal is to make all of this automatic so that adding a device is really easy.