Redo (again) how the stock objects are initialized in wxPython.

Factor out the wxPyTwoIntItem_helper template function so it can be
used in other extension modules.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39008 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/core.i

@@ -15,6 +15,7 @@
 %{
 #include "wx/wxPython/wxPython_int.h"
 #include "wx/wxPython/pyclasses.h"
+#include "wx/wxPython/twoitem.h"
 %}