Suggestion: Zig support

[kassane]

From 0.10 it is already possible to use the self-hosting compiler (stage2).

Updated: https://ziglang.org/download/0.11.0/release-notes.html

References:

• https://github.com/ziglang/zig/issues/630
• https://github.com/ziglang/zig/issues/2162
• https://github.com/ziglang/zig/issues/8220
• https://github.com/ziglang/zig/pull/16306
• https://ziglang.org/documentation/master/std/ziglexer.js

[skvadrik]

Zig support was added in experimental branch syntax-files: https://github.com/skvadrik/re2c/commit/5cd48a8ffb1bfc82b17bd7f381437efd1678b188. See examples: https://github.com/skvadrik/re2c/tree/syntax-files/examples/zig.