Rust

add benchmark for map function #11

Job	Run time
Check cargo fmt	39s
cargo check	2m 12s
build with wasm-pack	2m 39s
cargo test (macos)	9m 13s
cargo test (macos-aarch64)	8m 46s
Verify MSRV (Min Supported Rust Version)	6m 27s
Verify Vendored Code	49s
cargo test (win64)	33m 48s
cargo test (amd64)	0s
cargo test datafusion-cli (amd64)	0s
cargo test doc (amd64)	0s
cargo examples (amd64)	0s
clippy	0s
cargo test hash collisions (amd64)	0s
cargo doc	0s
Run sqllogictest with Postgres runner	0s
cargo test pyarrow (amd64)	0s
verify benchmark results (amd64)	0s
check Cargo.toml formatting	0s
check configs.md is up-to-date	0s
	1h 4m 33s

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