[Device] Thermostat like the Eurotronics ones
Hi! 

Great plugin -- really like. So far, I have manually all my zigbee stuff to homebridge, but that was buggy.

Would you mind adding support for thermostats (e.g. the Eurotronic ones)?

I am not sure what information you need -- in case it helps, I am adding some stuff:

A syslog snippet outlining the zigbee parameters of a thermostat:
`Dec 20 00:04:50 troublemaker npm[7065]: Zigbee2MQTT:info  2020-12-20 00:04:50: MQTT publish: topic 'zigbee2mqtt/KuecheThermostat', payload '{"battery":0.5,"battery_low":0,"current_heating_setpoint":20,"eurotronic_error_status":0,"eurotronic_host_flags":{"boost":false,"child_protection":false,"mirror_display":false,"window_open":false},"eurotronic_system_mode":1,"linkquality":65,"local_temperature":21.5,"local_temperature_calibration":0,"occupied_heating_setpoint":20,"pi_heating_demand":2,"system_mode":"auto","unoccupied_heating_setpoint":10}'`

... and *apparently* some JSON used to create this device in homebridge (using the homebridge MQTT plugin) 

`{"service_name":"Heizung","service":"Thermostat","CurrentHeatingCoolingState":1,"TargetHeatingCoolingState":{"validValues":[0,1]},"CurrentTemperature":"default","TargetTemperature":18,"TemperatureDisplayUnits":"default","name":"KuecheThermostat"}`

(not sure if this is best practice ... did this one year ago without knowing of homebridge.io API docs)


