refactor: standardize object type identification using uLibTypeMacro and update serialization macros

src/Vtk/Math/vtkAssembly.h

@@ -36,7 +36,7 @@ class vtkObjectsContext; // forward
  */
 class Assembly : public Puppet {
 public:
-    virtual const char *GetClassName() const override { return "Vtk.Assembly"; }
+    uLibTypeMacro(Assembly, Puppet)
 
     Assembly(uLib::Assembly *content);
     virtual ~Assembly();