set OSG force feedback graph visibility based on config file

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@7941 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: 2b035f5f56f3de4194db6be3679d31150c7ced0d
Former-commit-id: 610106d0e60296b4e1fcb1000c53defe220fa5b6

src/modules/graphic/osggraph/Viewer/OsgHUD.cpp

@@ -2059,6 +2059,7 @@ osg::ref_ptr <osg::Group> SDHUD::generateHudFromXmlFile(int scrH, int scrW)
                             );
 
                             this->osgGroupHud->addChild(this->hudGraphElements[elementId]->getGroup());
+                            this->hudGraphElements[elementId]->setNodeMask(widgetEnabled);
 #endif
                         }
                         else