Add the export option to cuetfy.exe.

[Marimoiro]

Very unfortunate.
Now cuetify.exe cannot set config.export to true.

So when I convert DiceFaces: 1 | 2 | 3 | 4 | 5 | 6 @cuetsy(kind="type") with cuetify.exe,
I don't get export type DiceFaces = 1 | 2 | 3 | 4 | 5 | 6; but type DiceFaces = 1 | 2 | 3 | 4 | 5 | 6;.

I have implemented the export option in one way and created a PR(#82).
Would you accept this PR with some modifications?

[spinillos]

Thank you for that. I just merged the PR.