Add color temp and brightness config to light

custom_components/localtuya/common.py

@@ -260,6 +260,14 @@ class LocalTuyaEntity(Entity):
 
         return value
 
+    def dps_conf(self, conf_item):
+        """Return value of datapoint for user speified config item.
+
+        This method looks up which DP a certain config item uses based on
+        user configuration and returns its value.
+        """
+        return self.dps(self._config.get(conf_item))
+
     def status_updated(self):
         """Device status was updated.