From Wang Rui, new native binary/ascii format infrastructure and wrappers.

From Robert Osfield, refactor of Wang Rui's original osg2 into 3 parts - parts placed into osgDB, the ReaderWriter placed into src/osg/Plugin/osg and wrappers into src/osgWrappers/serializers/osg

src/osgWrappers/serializers/osg/CoordinateSystemNode.cpp

@@ -0,0 +1,14 @@
+#include <osg/CoordinateSystemNode>
+#include <osgDB/ObjectWrapper>
+#include <osgDB/InputStream>
+#include <osgDB/OutputStream>
+
+REGISTER_OBJECT_WRAPPER( CoordinateSystemNode,
+                         new osg::CoordinateSystemNode,
+                         osg::CoordinateSystemNode,
+                         "osg::Object osg::Node osg::Group osg::CoordinateSystemNode" )
+{
+    ADD_STRING_SERIALIZER( Format, "" );  // _format
+    ADD_STRING_SERIALIZER( CoordinateSystem, "" );  // _cs
+    ADD_OBJECT_SERIALIZER( EllipsoidModel, osg::EllipsoidModel, NULL );  // _ellipsoidModel
+}