Expose reboot action (#1073)

Expose reboot through the feature interface.
This can be useful in situations where one wants to reboot the device,
e.g., in recent cases where frequent update calls will render the device
unresponsive after a specific amount of time.

kasa/smart/smartdevice.py

@@ -439,6 +439,18 @@ class SmartDevice(Device):
                 )
             )
 
+        self._add_feature(
+            Feature(
+                device=self,
+                id="reboot",
+                name="Reboot",
+                attribute_setter="reboot",
+                icon="mdi:restart",
+                category=Feature.Category.Debug,
+                type=Feature.Type.Action,
+            )
+        )
+
         for module in self.modules.values():
             module._initialize_features()
             for feat in module._module_features.values():