Contrast Changed

When the `Contrast` of the selected Webcam is changed

Variables

Name	Type	Description
		The new `Contrast` value that was set, the value is a whole percentage
		The previous `Contrast` that was set, the value is a whole percentage

Brightness Changed

When the `Brightness` of the selected Webcam is changed

Webcam Deactivated

Whan a Webcam is no longer ready for use in Elgato CameraHub