lighting and backface culling settings from the event handling code in StatesetManipulator
into public methods. The event handler now calls the public methods. This allows user code
to invoke this same functionality from non-keyboard event inputs without clashing with the
keyboard-invoked functionality."
From Robert Osfield, tweaks to the above to kepp the coding style the same as the rest of the OSG, also
made getPolygonMode() const, and updated the wrappers.
and osgProducer to osgWrappers directory.
Enabled the build of osgWrappers/osg, osgWrappers/osgPartile and osgWrappers/osgSim,
but not osgUtil, osgDB, osgFX, osgTerrain, osgGA and osgProducer due to compile
errors. I am assuming that these compilers are fixable so I'm checked all the
source code so that members of the community can help fix them.
