Remove --no-allow and --no-comment options from windows-bindgen

[Copilot]

Remove the --no-allow and --no-comment options from windows-bindgen entirely.

• Remove CLI flags / builder methods / Config fields; stop emitting banner + #![allow(...)]
• Strip the options from all .txt/build.rs/fixture.toml call sites
• Remove no_allow/no_comment from the fixtures harness; delete obsolete fixtures
• Regenerate library bindings (cargo run -p tool_bindings)
• Add outer #[allow(non_snake_case, …)] to mod bindings; declarations that needed it
• Regenerate rdl tests' src/{fn_abi,struct_fields,struct_values}.rs and add outer #[allow(…)] in crates/tests/libs/rdl/src/lib.rs
• Update docs (options.md, data/README.md)
• cargo test -p test_rdl ✅
• cargo test -p test_bindgen --test fixtures ✅
• cargo fmt --all --check ✅
• Open PR