[Feature]: records

[raylu]

Is there an existing issue for this?

• I have searched the existing issues

Description

I often want to encode a bunch of identically-shaped objects like

{"name": "raylu", "id": 1}
{"name": "bob", "id": 2}

packed encoding (#93) would help a lot, but
https://github.com/kriszyp/cbor-x#record--object-structures supports "records", which seems even better

Acceptance Criteria

No response

Suggestions for a technical implementation

No response