Update zig build to latest master

[star-tek-mb]

Version: approximately usable at zig 0.11.0-dev.1571+c1f71963a.

Also, adds package manager support (early MVP).

We need to add root build zig file to support Zig Package Manager. Once package manager gets support for overidding build root directory - we can move this logic in src/build.zig and remove root build.zig.

Also, now every build artifacts must accept target and optimize arguments, so it is also adjusted.

For now, there is not much info about how to use package manager in Zig, so I will leave it here:

Create build.zig.zon:

.{
    .name = "raylib_usage",
    .version = "0.0.0",

    .dependencies = .{
        .raylib = .{
            .url = "https://github.com/raysan5/raylib/archive/543333cae47c397f9bce93fe654aeba7cbe7e33d.tar.gz",
            .hash = "1220a2bf5e5a53060256428b107b7a86077581861e9cb7b42c5083f443575646d59f",
        },
    },
}

Hashes and commits may need to be adjusted (once merged).

Then in build.zig of your project:

...
const raylib_dep = b.dependency("raylib", .{
    .target = target,
    .optimize = optimize,
});
...
exe.linkLibrary(raylib_dep.artifact("raylib"));
...

[raysan5]

@star-tek-mb thank you very much for the review! Maybe this information could be added somewhere in the Wiki for future users?

[star-tek-mb]

Yeah, it should be added to Wiki, but after proper tooling for zig package manager (cli). Like adding dependencies (like npm install).

[Not-Nik]

I feel like this PR was premature given that Zig 0.11 hasn't been released to this day. The average user (me :)) now can't use raylib's build.zig because it uses std.Build which isn't available in 0.10.1 (the latest release). In the future I would recommend waiting for official releases before updating build.zig given the possibility for sudden unannounced API changes breaking the script.

#2913 related

[raysan5]

@Not-Nik Thanks for noticing it, I expected Zig 0.11 to be released by next raylib release but it's not...

[star-tek-mb]

I feel like this PR was premature given that Zig 0.11 hasn't been released to this day. The average user (me :)) now can't use raylib's build.zig because it uses std.Build which isn't available in 0.10.1 (the latest release). In the future I would recommend waiting for official releases before updating build.zig given the possibility for sudden unannounced API changes breaking the script.

#2913 related

You are right to some extent. But zig 0.11 have many C ABI fixes on windows and linux. (ziglang/zig#14333). So, i recommend to upgrade anyways, but if you want to use raylib for 0.10.1 you can use older raylib version I think.