Add ArraySize impls for 536 and 568 #267

Job	Run time
careful	52s
doc	12s
build (stable, armv7a-none-eabi)	14s
build (1.85.0, wasm32-unknown-unknown)	20s
build (stable, thumbv7em-none-eabi)	12s
build (1.85.0, armv7a-none-eabi)	20s
build (stable, wasm32-unknown-unknown)	13s
miri (x86_64-unknown-linux-gnu)	40s
build (1.85.0, thumbv7em-none-eabi)	19s
test (1.85.0)	22s
miri (s390x-unknown-linux-gnu)	51s
clippy	15s
rustfmt	6s
test (stable)	15s
	5m 11s

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