Added Macro's new cube map generation classes and osgcubemap demo.

src/osgUtil/HighlightMapGenerator.cpp

@@ -0,0 +1,23 @@
+#include <osgUtil/HighlightMapGenerator>
+
+using namespace osgUtil;
+
+HighlightMapGenerator::HighlightMapGenerator(const osg::Vec3 &light_direction,
+											 const osg::Vec4 &light_color,
+											 float specular_exponent,
+											 int texture_size)
+:	CubeMapGenerator(texture_size),
+	ldir_(light_direction),
+	lcol_(light_color),
+	sexp_(specular_exponent)
+{
+	ldir_.normalize();
+}
+
+HighlightMapGenerator::HighlightMapGenerator(const HighlightMapGenerator &copy, const osg::CopyOp &copyop)
+:	CubeMapGenerator(copy, copyop),
+	ldir_(copy.ldir_),
+	lcol_(copy.lcol_),
+	sexp_(copy.sexp_)
+{
+}