Started a doc to spec and design the device classes
Started a doc to spec and design the device classes

hairychris/energenie-test,whaleygeek/pyenergenie,whaleygeek/pyenergenie,whaleygeek/pyenergenie,hairychris/energenie-test,whaleygeek/pyenergenie,hairychris/energenie-test,hairychris/energenie-test