Rust

Extract storage manager related code from sled-agent #23560

Job	Run time
build-docs	13m 14s
check-omicron-deployment (ubuntu-22.04)	7m 50s
check-omicron-deployment (macos-12)	9m 2s
check-style	26s
clippy-lint	12m 21s
	42m 53s

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