hybrid-array: factor `SliceOps` out from `ArrayOps` (#1004) #520

Job	Run time
aarch64 (aarch64-unknown-linux-gnu, 1.60.0)	1m 52s
aarch64 (aarch64-unknown-linux-gnu, stable)	52s
cross (powerpc-unknown-linux-gnu, 1.60.0)	1m 36s
build (1.60.0, armv7a-none-eabi)	1m 23s
cross (powerpc-unknown-linux-gnu, stable)	35s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.60.0, sudo apt update && sudo apt install gcc-mult...	1m 41s
build (1.60.0, thumbv7em-none-eabi)	1m 22s
test (i686-unknown-linux-gnu, ubuntu-latest, stable, sudo apt update && sudo apt install gcc-mult...	30s
build (1.60.0, wasm32-unknown-unknown)	1m 21s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.60.0)	1m 30s
build (stable, armv7a-none-eabi)	13s
test (x86_64-unknown-linux-gnu, ubuntu-latest, stable)	18s
build (stable, thumbv7em-none-eabi)	13s
test (x86_64-apple-darwin, macos-latest, 1.60.0)	2m 2s
build (stable, wasm32-unknown-unknown)	13s
test (x86_64-apple-darwin, macos-latest, stable)	35s
test (x86_64-pc-windows-msvc, windows-latest, 1.60.0)	1m 56s
test (x86_64-pc-windows-msvc, windows-latest, stable)	1m 3s
minimal-versions / minimal-versions	44s
	19m 59s

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