Feature Request: Official Zig language support for FlatBuffers code generation

[tylitianrui]

Summary

Please add official Zig language support to the flatc code generator.

Background

Zig is a systems programming language with growing adoption in the
native/embedded/performance-sensitive ecosystem. It compiles to native code, has no hidden
control flow, and interoperates directly with C ABI — making it a natural fit for FlatBuffers.

We are currently building zarrow, a Zig
implementation of Apache Arrow that depends on FlatBuffers for its IPC wire format. Right now
we rely on a third-party wrapper (flatbufferz)
to consume the generated code, because there is no official flatc --zig backend.

What we are asking for

• A --zig backend in flatc that generates idiomatic Zig structs/unions for FlatBuffers
  schemas.
• Generated code should target the current stable Zig release (0.15.x) and track breaking
  language changes going forward.

Why now

• Zig 0.14+ has a stable package manager (build.zig.zon), making it practical to distribute
  a generated runtime as a dependency.
• Several projects (Arrow, TensorFlow Lite, game engines) already target Zig, creating demand
  for first-class schema-based serialization support.

References

• Zig language: https://ziglang.org/
• Existing community wrapper: https://github.com/archaistvolts/flatbufferz
• FlatBuffers language support tracking: https://google.github.io/flatbuffers/flatbuffers_support.html