Add `wait_for` and `wait_for_value` to WaitCell and WaitQueue #1347

Job	Run time
changed_paths	8s
cargo test (host)	4m 52s
cargo check (host)	3m 44s
rustfmt	14s
build boot image (x86_64)	3m 22s
clippy	2m 45s
Loom tests (cordyceps)	1m 30s
cargo test (cross x64)	4m 16s
Miri tests (codyceps)	1m 57s
docs	1m 59s
Loom tests (maitake)	4m 33s
Tests (maitake, no-default-features)	1m 41s
Loom tests (mycelium-util)	1m 13s
	32m 14s

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