Dirac support in Video players/processing tools

Alogn with the new version of Dirac, patches/utilties for support in various video players/processing tools have been released. These include
- Directshow Filter to enable dirac playback on MSWindows using the windows media player.
- Patch for FFMPEG
- Patch for MPlayer-1.0.pre7
- Patch for transcode-1.0.0