Minimal Zig wrapper for the glorious box3d.
Builds from source, pinned by tag in the zon file.
This probably requires exactly Zig version 0.16.0.
The bindings are still WIP as far as Zig-idiomaticity goes, but are fully usable.
I'll tag v0.1.0 at some point in the near future (or whichever version upstream is on by then).