Convert `nth_value` builtIn function to User Defined Window Function #34884

Job	Run time
Check License Header	2m 12s
cargo check	13m 24s
cargo test (macos)	18m 55s
build with wasm-pack	2m 56s
cargo test (macos-aarch64)	16m 54s
Verify Vendored Code	1m 1s
cargo test (win64)	1h 15m 12s
Check cargo fmt	42s
Verify MSRV (Min Supported Rust Version)	9m 22s
cargo test (amd64)	11m 56s
cargo test datafusion-cli (amd64)	4m 9s
clippy	6m 34s
cargo doc	4m 23s
cargo test doc (amd64)	16m 41s
Run sqllogictest with Postgres runner	3m 44s
verify benchmark results (amd64)	12m 49s
cargo examples (amd64)	14m 6s
cargo test pyarrow (amd64)	3m 9s
check configs.md and ***_functions.md is up-to-date	3m 16s
check Cargo.toml formatting	2m 54s
cargo test hash collisions (amd64)	17m 46s
	4h 2m 5s

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