Added support for SourceType and SourceFormat to .osg.
Added support for SourceType and SourceFormat to .osg.


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