follow up from #136: testing locally, with zig fetch, the package now is named lua_wrapper in build.zig.zon dependencies by default.
how do we want to proceed with the module that we export? ziglua is, within a zig project, slightly redundant, as observed in the rationale that led us to change the package name. on the other hand, just using lua feels slightly inaccurate: for one thing, the Zig module is more than just linking against the C library, and for another, the word Lua is already pretty heavily in use in the module itself.