Construct 3 games register a top-level window class named
"WindowsWebview2Wrapper" which does not contain "Chrome" or "Mozilla",
causing OBS automatic mode to use BitBlt instead of WGC, which results
in a black screen for Construct 3 games.
Add "WindowsWebview2Wrapper" to wgc_whole_match_classes and add
compatibility entries for window capture BitBlt and game capture
warnings.
Closes#13359
Pablo
bcd53e2914