Added Azimuth and Elevation intersector functors.
Added Azimuth and Elevation intersector functors.


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