Add missing libraries to vtk source extension pybind lib
Fixes the following praxis error:
PybindVTKSourceFns.cxx.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: static class vtkObjectBase * __cdecl vtkPythonUtil::GetPointerFromObject(struct _object *,char const *)" (__imp_?GetPointerFromObject@vtkPythonUtil@@SAPEAVvtkObjectBase@@PEAU_object@@PEBD@Z)