Add powerprotection module (#1337)

Implements power protection on supported devices.
If the power usage is above the given threshold and the feature is
enabled, the device will be turned off.

Adds the following features:
* `overloaded` binary sensor
* `power_protection_threshold` number, setting this to `0` turns the
feature off.

---------

Co-authored-by: Steven B <51370195+sdb9696@users.noreply.github.com>

kasa/smart/modules/__init__.py

@@ -34,6 +34,7 @@ from .matter import Matter
 from .mop import Mop
 from .motionsensor import MotionSensor
 from .overheatprotection import OverheatProtection
+from .powerprotection import PowerProtection
 from .reportmode import ReportMode
 from .speaker import Speaker
 from .temperaturecontrol import TemperatureControl
@@ -80,6 +81,7 @@ __all__ = [
     "Consumables",
     "CleanRecords",
     "SmartLightEffect",
+    "PowerProtection",
     "OverheatProtection",
     "Speaker",
     "HomeKit",