Added set up of CulLVisitor::Identifier so that the double buffered SceneView/CullVisitor share the same Identifier.
Added set up of CulLVisitor::Identifier so that the double buffered SceneView/CullVisitor
share the same Identifier.


ghub/osg,stmh/osg,artoolkit/osg,omega-hub/osg,omega-hub/osg,stmh/osg,XiaoCC/osg,ghub/osg,XiaoCC/osg,koshman86/osg,XiaoCC/osg,ghub/osg,ntoand/osg,koshman86/osg,ntoand/osg,XiaoCC/osg,ghub/osg,stmh/osg,artoolkit/osg,ntoand/osg,artoolkit/osg,koshman86/osg,stmh/osg,koshman86/osg,omega-hub/osg,XiaoCC/osg,ntoand/osg,stmh/osg,artoolkit/osg,omega-hub/osg