Add status for eco+ modes

[jimboca]

From Colin:

also if you ever wanted to know if eco+ was running, runtime has a showIconMode property that maps to a bunch of different eco+ modes

enum EcoPlusMode: Int { case inactive case drPrecool case drSetback case touPrecool case touSetback case smartHome case smartAway case smartRecovery case humidityLow case humidityHigh case contactOpen case grPrecool case grSetback }