Pass a videostream to dronestream

Enable sharing of video stream between plugins,
if the undelrying lib supports it.

plugins/video-stream/index.js

@@ -1,5 +1,5 @@
 function video(name, deps) {
-    require("dronestream").listen(3001);
+    require("dronestream").listen(3001, {tcpVideoStream: deps.client.getVideoStream()});
 };
 
 module.exports = video;