build

Refactor `ArraySubset` iterators #159

Job	Run time
clippy	37s
fmt	23s
test	1m 21s
build (stable, --features "")	59s
build (stable, --all-features)	1m 44s
codecov	2m 1s
build (stable, --no-default-features)	36s
build (1.71, --features "")	43s
build (1.71, --all-features)	2m 14s
build (1.71, --no-default-features)	31s
build (beta, --features "")	32s
build (beta, --all-features)	1m 47s
build (beta, --no-default-features)	30s
build (nightly, --features "")	46s
build (nightly, --all-features)	1m 53s
build (nightly, --no-default-features)	24s
	17m 1s

Provide feedback