Initial support for vacuums (clean module) (#944)

Adds support for clean module:
- Show current vacuum state
- Start cleaning (all rooms)
- Return to dock
- Pausing & unpausing
- Controlling the fan speed

---------

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

kasa/module.py

@@ -161,6 +161,9 @@ class Module(ABC):
     Camera: Final[ModuleName[smartcam.Camera]] = ModuleName("Camera")
     LensMask: Final[ModuleName[smartcam.LensMask]] = ModuleName("LensMask")
 
+    # Vacuum modules
+    Clean: Final[ModuleName[smart.Clean]] = ModuleName("Clean")
+
     def __init__(self, device: Device, module: str) -> None:
         self._device = device
         self._module = module