Add concrete ALDR recommendations for all data model items in RFC 8949

[laurencelundblade]

See https://mailarchive.ietf.org/arch/msg/cbor/n1uFlXyT27vYHcnI4MnyzDjVCz0/

I think these can replace the COSE thumbprint example. (I'm hoping for less text as well as clarity).

I think this is important in that we should actually do what we say we people should do.

[cabo]

Most of this list is indeed useful, we could add this information to the examples in Appendix B.

[cabo]

See also: https://mailarchive.ietf.org/arch/msg/cbor/Lm-GYgTDUCESkBzSo3Ws02WBNFU