Added sgv -stereo cessna.osg to make test list.
Added sgv -stereo cessna.osg to make test list.


artoolkit/osg,tomasthoresen/osg,jtorresfabra/osg,marchelbling/osg,jtorresfabra/osg,scrawl/osg,artoolkit/osg,scrawl/osg,openscenegraph/osg,marchelbling/osg,openscenegraph/osg,openscenegraph/osg,tomasthoresen/osg,tomasthoresen/osg,openscenegraph/osg,scrawl/osg,jtorresfabra/osg,jtorresfabra/osg,marchelbling/osg,tomasthoresen/osg,scrawl/osg,artoolkit/osg,marchelbling/osg,artoolkit/osg