Added computeIntersectionPoint and computeBisectorNormal functions
Added computeIntersectionPoint and computeBisectorNormal functions


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