Add gstreamer1.0-gl as dependency

Change-Id: If6b1d227af84510ce96f828b81349448c1d493a4
diff --git a/debian/control b/debian/control
index 7f95180..4bae460 100644
--- a/debian/control
+++ b/debian/control
@@ -14,6 +14,7 @@
          gir1.2-gst-plugins-base-1.0,
          gir1.2-gstreamer-1.0,
          gir1.2-gtk-3.0,
+         gstreamer1.0-gl,
          gstreamer1.0-plugins-bad,
          gstreamer1.0-plugins-good,
          gstreamer1.0-plugins-ugly,