Support CoseKey field ordering #230

Job	Run time
Build for a no_std target (stable)	19s
Build for a no_std target (beta)	19s
formatting	57s
build (stable)	13s
examples (stable)	15s
build (beta)	22s
examples (beta)	20s
build (nightly-2023-04-01)	21s
Rust 1.56.0 MSRV	2m 4s
Build for a no_std target (nightly-2023-04-01)	22s
examples (nightly-2023-04-01)	20s
Rust 1.57.0 MSRV	2m 8s
test (stable)	22s
clippy	13s
test (beta)	21s
coverage	2m 21s
test (nightly-2023-04-01)	27s
deny	4m 11s
doc	10s
udeps	4m 19s
	20m 24s

Provide feedback