Added getThermostatOperatingState & getEquipmentStatus

Added getThermostatOperatingState(): allows to get the current thermostat's state (cooling, heating, fan only).
However, this function  does not return the full equipment status -see getEquipmentStatus().

Added getEquipmentStatus(): returns the complete list of equipment running including HVAC/humidifier/dehumidifier/ERV/HRV/aux heat states