Add a widget for quick access to a camera

[ariedro]

Hi, thanks for the app, it's great.

One thing it would be nice to have is the possibility have a (perhaps customizable) widget for each camera, that way it would be possible to access quickly to the camera directly from the desktop.

The widget doesn't need to be a camera viewer in itself, just with it being a shortcut to the app viewer would be enough.

Thanks!