VideoPlayer possible improvements

[pango]

In a stream that featured the Lysandus video I noticed:

• music continued playing in background during the video. I suspect the issue is that the MIDI synthesis case is covered, but not the sampled music case;
• the video skipped the first time around. Given it''s triggered by clicking on the sarcophagus, I suspect the click got thru and interrupted the video. Maybe some hardening is required here (or enable abort on Escape key only for quest videos)

I tried fixing it myself, pluging on existing OnVideoStart/OnVideoEnd delegates, also blocking ambient sounds during video playback because why not; Main quest videos only play indoors, but who knows where videos could be played by a quest...
But it didn't seem to work, like they're not called. I'm a bit puzzled.

[pango]

Mmmh looks like C#/Unity compilation is playing tricks on me again. I removed the build subdirectory to be sure my code was compiled in, and surprize it works now...

I submitted a PR

[King of Worms]

Thanks for fixing the issue!