Add support for deCONZ daylight sensor (#13479)

* Add support for deCONZ daylight sensor

Bump pydeconz to 34

* Remove 'daylight' reason from async u

homeassistant/components/sensor/deconz.py

@@ -16,6 +16,7 @@ from homeassistant.util import slugify
 DEPENDENCIES = ['deconz']
 
 ATTR_CURRENT = 'current'
+ATTR_DAYLIGHT = 'daylight'
 ATTR_EVENT_ID = 'event_id'
 
 
@@ -113,6 +114,8 @@ class DeconzSensor(Entity):
         if self.unit_of_measurement == 'Watts':
             attr[ATTR_CURRENT] = self._sensor.current
             attr[ATTR_VOLTAGE] = self._sensor.voltage
+        if self._sensor.sensor_class == 'daylight':
+            attr[ATTR_DAYLIGHT] = self._sensor.daylight
         return attr