Add Stick properties

Author: bouwew

plugwise_usb/__init__.py

@@ -117,6 +117,16 @@ def joined_nodes(self) -> int | None:
             return None
         return len(self._network.registry) + 1
 
+    @property
+    def firmware_stick(self) -> str:
+        """Firmware of USB-Stick."""
+        return self._controller.firmware_stick
+
+    @property
+    def hardware_stick(self) -> str:
+        """Hardware of USB-Stick."""
+        return self._controller.hardware_stick
+
     @property
     def mac_stick(self) -> str:
         """MAC address of USB-Stick. Raises StickError is connection is missing."""