Sokol now has official D bindings

[ryuukk_]

LDC yet again is proving how essential it is for D, now that more 
OS are embracing ARM, having LDC available and maintained to 
support latest version of LLVM and all kind of platforms is a 
blessing

The maintainer is using macOS, and his library targets many 
platforms including the web with WASM, both supported by LDC out 
of the box

DMD for fast iteration time (on x86, hopefully ARM in the future)

And LDC for everything else

It's a deadly combo, thanks to everyone working hard on 
maintaining both projects