Added include of osc plugin directory to help with Windows build
Added include of osc plugin directory to help with Windows build


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