From Marco Jez, added  OSGNVEXT_ prefex to StateAttribute enums.
From Marco Jez, added  OSGNVEXT_ prefex to StateAttribute enums.


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