Move `gift` to `gift-cipher` and `speck` to `speck-cipher` (#554) #1021

Job	Run time
test (stable)	22s
test (1.85.0)	25s
build (stable, wasm32-unknown-unknown)	20s
build (1.85.0, wasm32-unknown-unknown)	21s
build (1.85.0, thumbv7em-none-eabi)	17s
minimal-versions / minimal-versions	24s
build (stable, thumbv7em-none-eabi)	15s
	2m 24s

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