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/Box.cpp

@@ -0,0 +1,14 @@
+#include <osg/Shape>
+#include <osgDB/ObjectWrapper>
+#include <osgDB/InputStream>
+#include <osgDB/OutputStream>
+
+REGISTER_OBJECT_WRAPPER( Box,
+                         new osg::Box,
+                         osg::Box,
+                         "osg::Object osg::Shape osg::Box" )
+{
+    ADD_VEC3_SERIALIZER( Center, osg::Vec3() );  // _center
+    ADD_VEC3_SERIALIZER( HalfLengths, osg::Vec3() );  // _halfLengths
+    ADD_QUAT_SERIALIZER( Rotation, osg::Quat() );  // _rotation
+}