pkcs1

der: introduce an `AnyLike` trait to mark parameters #3007

Job	Run time
build (1.72.0, thumbv7em-none-eabi)	21s
minimal-versions	0s
build (1.72.0, wasm32-unknown-unknown)	18s
build (stable, thumbv7em-none-eabi)	20s
test (1.72.0)	28s
build (stable, wasm32-unknown-unknown)	17s
test (stable)	15s
	1m 59s

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