Added osgUtil, osgDB, osgFX, osgParticle, osgSim, osgTerrain, osgGA

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.

src/osgWrappers/osgSim/InsertImpostorsVisitor.cpp

@@ -0,0 +1,32 @@
+// ***************************************************************************
+//
+//   Generated automatically by genwrapper.
+//   Please DO NOT EDIT this file!
+//
+// ***************************************************************************
+
+#include <osgIntrospection/ReflectionMacros>
+#include <osgIntrospection/TypedMethodInfo>
+#include <osgIntrospection/Attributes>
+
+#include <osg/Group>
+#include <osg/LOD>
+#include <osg/Node>
+#include <osgSim/InsertImpostorsVisitor>
+
+BEGIN_VALUE_REFLECTOR(osgSim::InsertImpostorsVisitor)
+	BaseType(osg::NodeVisitor);
+	Constructor0();
+	Method1(void, setImpostorThresholdRatio, IN, float, ratio);
+	Method0(float, getImpostorThresholdRatio);
+	Method1(void, setMaximumNumberOfNestedImpostors, IN, unsigned int, num);
+	Method0(unsigned int, getMaximumNumberOfNestedImpostors);
+	Method0(void, reset);
+	Method1(void, apply, IN, osg::Node &, node);
+	Method1(void, apply, IN, osg::Group &, node);
+	Method1(void, apply, IN, osg::LOD &, node);
+	Method0(void, insertImpostors);
+	Property(float, ImpostorThresholdRatio);
+	Property(unsigned int, MaximumNumberOfNestedImpostors);
+END_REFLECTOR
+