Audio Module Rewrite mcisendstring

[DerVVulfman]

Commander Wyatt made a system for MrMo's ABS that recognizes on-screen enemies and changes tunes when you're in a range (in mah MrMo demo). But it's also made for the default Audio and doesn't have the fancy fade-in/fade-out effects that THIS Audio Module could now allow.

Adding more melodies to an existing track... nope. That's something that needs to add to an existing piece or sync at an exact moment/millisecond.