Add zig compatibility

[gitbuda]

SOURCE: https://discord.com/channels/842007348272169002/842008652377751582/1191840879812554834

export CC="zig cc"
export CXX="zig c++"
cmake ..
make

zig.build

exe.linkLibC();
exe.linkSystemLibrary("mgclient");

TODO: Add under examples

const mgclient = @cImport(
    @cInclude("mgclient.h"),
);
pub fn main() !void {
    const initialization = mgclient.mg_init();
    std.debug.print("we initialized mgclient? {d}\n", .{initialization});
    const mg_client_version = mgclient.mg_client_version();
    std.debug.print("Here is the mgclient version from zig: {s}\n", .{mg_client_version});
}