Adds into-iter methods on views (#1510) #475

Job	Run time
clippy/stable	24s
Pass MSRV values to other jobs	3s
docs/nightly	22s
format/nightly	12s
cargo-careful	2m 2s
nostd/thumbv6m-none-eabi/stable	21s
miri	8m 26s
cross_test/s390x-unknown-linux-gnu/stable	6m 34s
cross_test/i686-unknown-linux-gnu/stable	1m 29s
blas-msrv	44s
tests/beta	2m 31s
tests/1.64.0	3m 47s
tests/stable	2m 39s
tests/nightly	2m 34s
conclusion	2s
	32m 10s

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