Added screen number, and flip support into dome correction codes.
Added screen number, and flip support into dome correction codes.

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