Making qml previewing on-device as easy as possible

The user which is a designer needs to be able to run the preview on a preconfigured device.
At the moment QtCreator uses the kits to save the information which device is where configured. So we need different kits for the different devices, but this makes it complicated for the user.
This feature needs to be tested on a regular base - at the moment it only works if Linux is the host see linked reports.