[WIP] blake2: integrate `blake2b_simd`/`blake2s_simd` crates #1362

Job	Run time
set-msrv / set-msrv	4s
minimal-versions / minimal-versions	23s
build (1.85.0, wasm32-unknown-unknown)	17s
build (stable, thumbv7em-none-eabi)	16s
build (1.85.0, thumbv7em-none-eabi)	21s
test (stable)	11s
cross (stable, powerpc-unknown-linux-gnu, default)	56s
cross (1.85.0, aarch64-unknown-linux-gnu, default)	1s
cross (1.85.0, powerpc-unknown-linux-gnu, default)	1s
cross (stable, aarch64-unknown-linux-gnu, default)	1s
test (1.85.0)	1s
build (stable, wasm32-unknown-unknown)	1s
	2m 33s

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