Add pan tilt camera module (#1261)

Add ptz controls for smartcameras.

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Co-authored-by: Teemu R. <tpr@iki.fi>

kasa/smartcamera/modules/__init__.py

@@ -5,6 +5,7 @@ from .camera import Camera
 from .childdevice import ChildDevice
 from .device import DeviceModule
 from .led import Led
+from .pantilt import PanTilt
 from .time import Time
 
 __all__ = [
@@ -13,5 +14,6 @@ __all__ = [
     "ChildDevice",
     "DeviceModule",
     "Led",
+    "PanTilt",
     "Time",
 ]