Warning Windows users about the known "play from CD" bug
When looking at discussion forums - both our own and other LucasArts-related ones - it's depressing to see how often the "Room X not in Y" problem comes up. This is almost certainly the known bug where playing a game with CD audio tracks from the CD causes ScummVM to crash.
Since this bug has been known for ages, I assume that we don't have any way to work around it. We can, however, issue a warning message to the user. That's what this patch does.
I don't know if this is the cleanest way of doing it, so it should be viewed as a proof-of-concept. It's quite possible that we need to add the same check for the Goblins engine, since that too uses CD audio tracks for some games.
Ticket imported from: #1208299. Ticket imported from: patches/537.