vqf: add more known extensions

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

libavformat/vqf.c

@@ -265,5 +265,5 @@ AVInputFormat ff_vqf_demuxer = {
     .read_header    = vqf_read_header,
     .read_packet    = vqf_read_packet,
     .read_seek      = vqf_read_seek,
-    .extensions = "vqf",
+    .extensions     = "vqf,vql,vqe",
 };