Add required constants

Author: bouwew

plugwise/helper.py

@@ -17,14 +17,21 @@
 
 from .constants import (
     APPLIANCES,
+    ATTR_ICON,
+    ATTR_ID,
     ATTR_NAME,
+    ATTR_STATE,
     ATTR_TYPE,
     ATTR_UNIT_OF_MEASUREMENT,
+    COOLING_ICON,        
     DEVICE_MEASUREMENTS,
     DOMAIN_OBJECTS,
     ENERGY_KILO_WATT_HOUR,
     ENERGY_WATT_HOUR,
+    FLAME_ICON,
     HEATER_CENTRAL_MEASUREMENTS,
+    HEATING_ICON,
+    IDLE_ICON,
     HOME_MEASUREMENTS,
     LOCATIONS,
     POWER_WATT,