hdrcalibrator: add a summary page with a setting for Windows HDR apps

Windows games are a bit special with their HDR support, as most of them do not follow system configuration but have their own calibration settings. Because these calibration settings assume the system behaves like MS Windows and just copies the game contents to the screen unchanged, they don't work particularly well in Plasma.

To work around that, we need to assume that these applications target some predefined settings. The added option allows the user to choose which screen or rather which calibration Windows applications on the system can be assumed to be calibrated towards.