Fixes shared stateSet in DisplayGeometryVisitor
Fixes shared stateSet in DisplayGeometryVisitor

jmirabel/osgjs,hishamabdelrahman/osgjs,gideonmay/osgjs,hishamabdelrahman/osgjs,kkuunnddaannkk/osgjs,jtorresfabra/osgjs,cedricpinson/osgjs,cedricpinson/osgjs,kkuunnddaannkk/osgjs,gideonmay/osgjs,cedricpinson/osgjs,jtorresfabra/osgjs,kkuunnddaannkk/osgjs,jtorresfabra/osgjs,jmirabel/osgjs,hishamabdelrahman/osgjs,jmirabel/osgjs,gideonmay/osgjs