Menu not able to build simple item that is { ID, string, string }

[rmpowell77]

This line doesn't seem to build:

            wxUI::Item { wxID_FIND, "&Find\tCTRL-F", "No-op Find" },

It looks like it's because Item has this deduction:

    template <typename F>
    Item(wxStandardID identity, std::string const& name, F function)
        : Item(identity, name, "", function)
    {
    }

That template F gets Hungry, and will "swallow" anything, including strings.

Why not just call it the function type that we expect?

[rmpowell77]

Fixed with #133