Add sanear submodule
Add libsoxr VS project
Add libbs2b VS project
Add soundtouch VS project
Add sanear VS project
Use sanear instead of the broken MpcAudioRenderer
Use "Internal Audio Renderer" name

And no longer mention internal audio renderer as "broken".
Disable AVI2AC3Filter for trial
Implement Internal Audio Renderer options page
Add /randomize command line switch

Command line switches help dialog is still not updated.

Refs #5147