feature: Property for outdoor temperature sensor

Author: Sander0542

src/pymelcloud/ata_device.py

@@ -207,6 +207,13 @@ def room_temperature(self) -> Optional[float]:
             return None
         return self._state.get("RoomTemperature")
 
+    @property
+    def has_outdoor_temperature(self) -> bool:
+        """Return True if the device has an outdoor temperature sensor."""
+        if self._device_conf.get("HideOutdoorTemperature", False):
+            return False
+        return self._device_conf.get("Device", {}).get("HasOutdoorTemperature", False):
+
     @property
     def outdoor_temperature(self) -> Optional[float]:
         """Return outdoor temperature reported by the device."""