freepats: new package

freepats is a project to create a free and open set of instrument
patches, in any format, that can be used with softsynths.

I'm adding it because it is needed for WildMIDI, which is needed for
MIDI support in Qmmp (audio player). I'll add WildMIDI and Qmmp in the
next commit(s).
wildmidi: new package

WildMIDI is a simple software midi player which has a core softsynth
library that can be use with other applications.

I have tested the wildmidi executable with a MIDI file. It works.
qmmp: new package

Qmmp is a Qt-based audio player that look like Winamp.
Merge pull request #543 from bjornfor/qmmp

Add Qmmp audio player (plus dependencies)