Add partition(similar to numpy.partition) (#1498) #443

Job	Run time
clippy/stable	32s
Pass MSRV values to other jobs	2s
nostd/thumbv6m-none-eabi/stable	20s
cross_test/i686-unknown-linux-gnu/stable	2m 19s
cargo-careful	2m 13s
format/nightly	13s
cross_test/s390x-unknown-linux-gnu/stable	8m 6s
miri	8m 18s
docs/nightly	21s
blas-msrv	45s
tests/1.64.0	3m 50s
tests/beta	2m 56s
tests/stable	3m 6s
tests/nightly	3m 18s
conclusion	4s
	36m 23s

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