Add test crate to compile DataFusion with wasm-pack #18706

Job	Run time
build with wasm-pack	12m 43s
cargo check	9m 39s
cargo test (mac)	17m 6s
Check cargo fmt	1m 8s
Verify Vendored Code	1m 25s
cargo test (win64)	22m 54s
Verify MSRV	10m 31s
cargo examples (amd64)	7m 29s
cargo test datafusion-cli (amd64)	4m 47s
cargo test (amd64)	11m 40s
check configs.md is up-to-date	3m 34s
check Cargo.toml formatting	2m 3s
clippy	6m 36s
cargo doc	5m 9s
cargo test pyarrow (amd64)	3m 18s
cargo test hash collisions (amd64)	12m 9s
cargo test doc (amd64)	18m 47s
Run sqllogictest with Postgres runner	6m 45s
verify benchmark results (amd64)	37m 36s
	3h 15m 19s

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