Cg timescaleFadeEnd

Usage
When using timescale you may, for strange reasons no one can think of, want to make the timescale fade nicely from one value to another. To facilitate this you can set cg_timescaleFadeSpeed to a positive float, and the timescale will be adjusted by that value every frame until it gets to cg_timescaleFadeEnd. If cg_timescaleFadeEnd is less than timescale then the value of cg_timescaleFadeSpeed will be subtracted instead of being added.