Add bench support

[anyduck]

Copied test.rs into bench.rs with minimal changes. I didn't want to touch macros.rs because it didn't set WINEDEBUG and RUNNER env vars

Tested locally on a criterion benchmark with the patch

[patch.crates-io]
cargo-options = { git = "https://github.com/anyduck/cargo-options", branch = "feat/bench" }

This depends on messense/cargo-options#29