Fix gmod_suit 1 breaking sprinting
Sentences system calls EntityEmitSound
There are a few caveats:
* SoundName is always invalid.wav
* OriginalSoundName is the sentence name
* The sound table will contain SentenceIndex in these cases
* OriginalSoundName can be changed to replace the sound.
Global.EmitSentence now has an optional 9th argument = DSP, defaults to 0