Adds an entry to the 'VLC' menu for extensions, which is then auto-populated.
Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>
(cherry picked from commit ced48b310db5f137084e0fcc1783c1ac006a96f3)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>