PBFX3 Cabinet Backglass Support

[rablack97]

borderless windowed mode fixed the problem, videos no longer freeze.

[rablack97]

Pinball X users used to be able to use backglass videos in PBFX2 by disabling the backglass in PBFX2. The table select backglass would then show up while playing the game.

Something changed in PBFX3 to where the video now freezes.

Still images work fine, gifs (just shows a still imgage), and videos do not, is there support for this.