text fields don't handle wide character encodings properly

[NQNStudios]

On Mac in the editor, if you type an emdash with shift-option-hyphen, you get a box char appearing in the text field, and your scenario will save out with an unrecognized character that does not render in-game.

Presumably Windows is broken too.

[NQNStudios]

I notice we are setting pendingKey based on sfml event's event.text.unicode which is probably SFML's default of UTF-16 -- could be that converting UTF-8 fixes this.

[NQNStudios]

It's UTF32 and we're putting it in a wchar_t.

[clort81]

This gives me PTSD. Will pretend it doesn't exist.