Seems there is a missing file required to link test
Fixed linking issue due to undefined references
Add fsb5.c also
Update the audacious vgmstream plugin for audacious 3.5.1
Update exts.cc

Somehow some extensions was lost.
Merge pull request #6 from TricksterGuy/master

Fixes for undefined reference errors when linking / update audacious plugin for audacious 3.5.1