Add ARM NEON SIMD support for Raspberry Pi (3/4/5) #143

Job	Run time
native-backend/stable	42s
format/stable	19s
nostd/thumbv6m-none-eabi/stable	29s
cross_test/i686-unknown-linux-gnu/stable	1m 37s
cross_test/s390x-unknown-linux-gnu/stable	1m 44s
Pass MSRV values to other jobs	3s
clippy/stable	20s
miri	-1s
docs/nightly	-1s
cargo-careful	-1s
blas-msrv	52s
tests/1.64.0	54s
tests/beta	1m 5s
tests/stable	55s
conclusion	-1s
	8m 56s

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