wallet attestations

[manpace]

wallet app attestation
wallet app attestation request
wallet unit attestation

[peppelinux]

this lib must be renamed in a more general way

wallet_attestations instead of wallet_instance_attestation

[peppelinux]

done in 7165263

[manpace]

Thanks for renaming the module to wallet_attestations. I had initially changed it from wallet_instance_attestation to wallet_instance_attestations but the new naming is definitely more appropriate.

[peppelinux]

@manpace the CI is broken and the componest is still not renamed to wallet_attestations after more than 2 weeks

doing it by myself, I would ask you when possible the reasons about these performance

[peppelinux]

@manpace the content of this PR was still misaligned with both eudiw ARF and it-wallet specs

• x5c is mandatory in wia jtw header
• the typ of both wia and wa request was misaligned
• the sign alg cannot be RS256

I have fixed these in my last three commits, I also have included comments to evidence from where these changes came from, in term of normative references.