Added some Display Enhancements

[hstriepe]

I forked and branched this cool app to help my gameplay enjoyment.
The branch is here: https://github.com/hstriepe/quick-camera

• The display is prevented from sleeping.
• On full screen, the mouse cursor is hidden.

There is a notarized build in the tags. I am thinking of adding audio support, but that looks more involved.

[hstriepe]

This has been succeeded by CapturePlay that features a rewrite and lots of additions, including audio routing for console gaming using a USB Capture device.