sceKernelStartModule() basic functionality

I'm sure it doesn't work exactly right, but it works well enough that it helps Valkyrie Profile: Lenneth and (afaiu) Metal Gear Solid: Portable Ops.  I've tested it on a number of games by now and it hasn't seemed to cause any problems (and I fixed the only one I hit so far for Ridge Racer by blacklisting sceMpeg.)

-[Unknown]