raccoon: Add imperfect timing flag, dodghero: Add imperfect sound flag

[JimCarlTay]

This is a scaled-down version of PR #14890 that focuses only on adding the Imperfect Timing flag to raccoon and the Imperfect Sound flag to dodghero.

Refer to commit messages for proof/justification.

[cuavas]

I don’t think raccoon needs the imperfect timing flag. It’s marked not working, and there’s a bunch of other stuff going wrong, e.g. whatever makes it generate excessive amounts of recompiled code if you disable single-instruction mode. Not working means all bets are off

Imperfect sound isn’t the right flag for dodghero. It’s not really a case of bad sound emulation – it’s bad timing that happens to cause one sound to play incorrectly, and could be throwing other stuff off as well. Depending on how @ajrhacker, maybe multiple games on that platform should have the imperfect timing flag.