Disambiguate [G|S]etSelection in OwnerDrawnComboBox to ensure the one from wx.ItemContainer is used, not the one inherited from wx.TextEntry.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@73379 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
reSWIGged

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@73380 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775