Add examples subdirectory. Separate example programs from regression test programs. Remove obsolete test programs.
Add examples subdirectory. Separate example programs from regression
test programs. Remove obsolete test programs.

BKrev: 3fd55bf8WnAIDmp4Hp-dN5JsgE9M2A

Distrotech/audiofile,eriser/audiofile,mpruett/audiofile,fabzzap/audiofile,mpruett/audiofile,mpruett/audiofile,eriser/audiofile,Distrotech/audiofile,eriser/audiofile,Distrotech/audiofile,fabzzap/audiofile,fabzzap/audiofile