Add map and set `extract_if` #379

Job	Run time
miri	3m 55s
Check MSRV and minimal-versions	1m 9s
nostd_build (1.63.0, thumbv6m-none-eabi)	44s
clippy	16s
nostd_build (stable, thumbv6m-none-eabi)	16s
tests (1.63.0)	1m 21s
tests (stable, arbitrary)	41s
tests (stable, quickcheck)	44s
tests (stable, rayon)	43s
tests (stable, rustc-rayon)	54s
tests (stable, serde)	54s
tests (stable, borsh)	38s
tests (stable, std)	47s
tests (beta)	36s
tests (nightly, test build benchmarks)	38s
Success	1s
	14m 17s

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