Ported various demos and support classes over to use the new osg::Geometry class

thus removing dependancy on osg::Geoset from most of the OSG, only loaders
left to port now.

include/osg/Geometry

@@ -28,7 +28,7 @@ enum ArrayType
     Vec4ArrayType     = 11
 };
 
-class AttributeArray : public Object
+class SG_EXPORT AttributeArray : public Object
 {
 
     public:
@@ -117,7 +117,7 @@ enum PrimitiveType
     UIntDrawElementsPrimitiveType       = 4,
 };
 
-class Primitive : public Object
+class SG_EXPORT Primitive : public Object
 {
     public: