Extended DirectX bindings with Direct3D{7,8,9,11,12} support

[Jeremie Pelletier via Digitalmars-d]

Hello, I'm decoupling some stuff from my project code and dumped 
a lot of it into the directx-d bindings, I want to turn it more 
derelict-like in the future but here is what I have so far:

https://github.com/ddude/directx-d
I successfully created contexts in all versions except 12 which I 
just finished and haven't tested yet.

I'm also using the new Objective-C support to create bindings to 
Cocoa and Metal, these should come out soon as well!