Feature/bip322 integration #1028

Job	Run time
Rust fmt	25s
Clippy (--no-default-features)	45s
Build and test (stable, --no-default-features)	58s
Clippy (--all-features)	1m 8s
Build and test (stable, --all-features)	1m 21s
Build and test (stable, --features default)	55s
	5m 32s

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