Begin work on audio manager.
Added NVorbis library.
Merge branch 'master' of github.com:Sharparam/TriEngine2D
More work on audio, implemented NVorbis.
Added Math helper class.
Finished implementation of sound systems.
Changed sound implementation, threading isn't really needed.
ReSharper cleanup.
Merge pull request #14 from Sharparam/patch

Implemented sound system