Unideomatic naming convention

[vitvakatu]

I'm a bit confused with all these Nk in front of every type. It serves absolutely no purpose because Rust has namespaces, and the common usage looks like:

use nuklear_rust as nk;
//....
nk::NkAllocator::new_vec();

[snuk182]

Roger that.

[snuk182]

Won't fix the constants and enum variants, because they are mostly reexported from *-sys so I'd keep these names consistent through the whole lib.