Add Smooth Streaming module

Tested with:

***** Live *****
- http://demo.anevia.com:3128/live/disk1/live1/ss-ss/manifest
- http://demo.anevia.com:3129/live/disk1/live2/ss-ss/manifest

***** VOD *****
- http://demo.anevia.com:3131/vod/disk1/content2/ss-ss/Manifest
- http://demo.anevia.com:3130/vod/disk1/content1/ss-ss/Manifest

- http://mediadl.microsoft.com/mediadl/iisnet/smoothmedia/Experience/BigBuckBunny_720p.ism/Manifest



Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>