missing wxVListBoxXmlHandler?

[wsu-cb]

I want to create a (subclass of) wxVListBox using XRC. I initially thought that I could treat wxVListBox as a subclass of wxPanel, but then I discovered that wxVListBox has its own Create() function. I think having its own Create() function means wxVListBox needs a wxVListBoxXmlHandler to properly be used with XRC.

Assuming no one explains to me how my thinking here is incorrect, I will try to submit a wxVListBoxXmlHandler.