Depend on vlc-nox for mod_vlc

mod_vlc needs the plugins from vlc-nox to do anything useful.

Currently mod_vlc segfaults without the plugins.  Even after that is
fixed, however, without any plugins mod_vlc can't do its job, so we'll
set a hard dependency here.  I could probably be talked into making
this a Recommends rather than Depends.

FS-6124

debian/control-modules

@@ -540,6 +540,7 @@ Module: formats/mod_vlc
 Description: VLC streaming
  This module provides VLC streaming.
 Build-Depends: libvlc-dev (>= 2.0.0)
+Depends: vlc-nox
 Distro-Conflicts: squeeze
 
 ## mod/languages