Pass data regarding if sky browser and target are facing camera and using radius azimuth elevation to gui

src/rendering/screenspacerenderable.cpp

@@ -464,6 +464,10 @@ bool ScreenSpaceRenderable::isUsingRaeCoords() const
 {
     return _useRadiusAzimuthElevation;
 }
+bool ScreenSpaceRenderable::isFacingCamera() const
+{
+    return _faceCamera;
+}
 void ScreenSpaceRenderable::setEnabled(bool isEnabled)
 {
     _enabled = isEnabled;