Support for Post-Quantum Signature Types

[decentralgabe]

https://datatracker.ietf.org/doc/draft-prorock-cose-post-quantum-signatures/

[decentralgabe]

Go impl of Kyber! https://github.com/cloudflare/circl/tree/main/kem

[michaelneale]

the "kyber crystal" name really does make it hard to take seriously ;)

[decentralgabe]

Opened lestrrat-go/jwx#912 which is needed for support for our jw* code

[decentralgabe]

There is an incompatibility issue between the go and js dilithium suites which must be resolved before test vectors can be implemented cloudflare/circl#435