Add video/ogg and audio/ogg to vlc.desktop
The current git version of file started to report ogg files as mime type audio/ogg and video/ogg (see https://github.com/file/file/commit/fbbd594afb42f514237a11fd10e1cc8c21808f62 and http://bugs.gw.com/view.php?id=382). Since file is used in at least one code path of xdg-open, please add audio/ogg and video/ogg to the list of supported mime types in share/vlc.desktop.in.
This change has also been requested in Debian as [https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762564 #762564].