fix symbol import/export warning on windows static python dashboard

Should fix warnings like this one:
vtkCommonDataModelPython27D-6.1.lib(vtkVectorPython.obj) : warning LNK4217: locally defined symbol ?PyvtkTuple_IdLi4EE_Type@@3U_typeobject@@A (struct _typeobject PyvtkTuple_IdLi4EE_Type) imported in function "void __cdecl `dynamic initializer for 'PyvtkVector_IdLi4EE_Type''(void)" (??__EPyvtkVector_IdLi4EE_Type@@YAXXZ) [C:\Dashboards\MyTests\VTK-nightly-static\Wrapping\Python\vtkpython.vcxproj]

Change-Id: Ie361c8fbbcbc029b38ffdd4d06e576d0bff5ef9a
Merge topic 'fix_win_python_static_comp_warning' into master

d65607e2 fix symbol import/export warning on windows static python dashboard