Added a bunch of files synched with 0.8.42

src/osgDB/WriteFile.cpp

@@ -0,0 +1,30 @@
+
+#include "osg/Notify"
+#include "osg/Object"
+#include "osg/Image"
+#include "osg/Node"
+#include "osg/Group"
+#include "osg/Geode"
+
+#include "osgDB/Registry"
+#include "osgDB/WriteFile"
+
+using namespace osg;
+using namespace osgDB;
+
+bool osgDB::writeObjectFile(const Object& object,const std::string& filename)
+{
+    return Registry::instance()->writeObject(object,filename);
+}
+
+
+bool osgDB::writeImageFile(const Image& image,const std::string& filename)
+{
+    return Registry::instance()->writeImage(image,filename);
+}
+
+
+bool osgDB::writeNodeFile(const Node& node,const std::string& filename)
+{
+    return Registry::instance()->writeNode(node,filename);
+}