WINTERMUTE: Add workaround flags and use a workaround flag to fix #6647

Behaviour of BaseSprite::reset() changed in WME 1.8.6.
5MA and possibly other games ship with pre-1.8.6 WME, and depend on the old behaviour.

We then set up WME-specific workaround flags and use one of them to mark a game as depending on the old behaviour.

I had a lot of guidance from @fuzzie on this - but don't blame the poor lady if it's still ugly, the ugly parts are all mine.

If you prefer a less invasive (but imho rather ugly) solution there's my branch fix_cat_hackish: 
https://github.com/tobiatesan/scummvm/compare/fix_cat_hackish

It simply if()s to look at the game name.


> An "emulated version" system isn't really an either/or, it is a solution to the problem "feature X 
> behaved differently in engine versions before X.Y.Z, which can then be applied generally. 
> Game specific fixes can still be applied separately from that. 

I like this.
Could we do this with a custom class that extends GameDescription, adding _wmeVersion?

Could we assume _wmeVersion = 0 ==> always use latest/current aka no old version emulation?