GUI library for D

[Adam D. Ruppe]

Matthias Pleh wrote:
> Have you some code around, which we can push further?

Yeah, I'm porting one of the C components to D, then will post it
here.

(The D headers weren't good enough and I got lazy when copying them
over and decided to just write a couple of the functions in C instead.
I've already moved the X11 over to D, now need to do the same to
the Windows side.)