Rust

rename macro lib to user_doc #429

Job	Run time
cargo check	1m 16s
cargo test (win64)	6m 11s
Check cargo fmt	41s
Check License Header	3m 17s
build with wasm-pack	1m 39s
cargo test (macos)	2m 3s
cargo test (macos-aarch64)	2m 1s
Verify MSRV (Min Supported Rust Version)	5m 45s
Verify Vendored Code	49s
cargo examples (amd64)	0s
cargo test (amd64)	0s
cargo doc	0s
cargo test doc (amd64)	0s
cargo test datafusion-cli (amd64)	0s
verify benchmark results (amd64)	0s
check Cargo.toml formatting	0s
clippy	0s
check configs.md and ***_functions.md is up-to-date	0s
cargo test hash collisions (amd64)	0s
cargo test pyarrow (amd64)	0s
Run sqllogictest with Postgres runner	0s
	23m 42s

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