Libraries: add beatt87 jose-swift library JWT with all JWS algorithms and JWE key algorithms and encryption algorithms, nested JWTs

[beatt83]

Add a jose library that adds support of Jose (JWK, JWS, JWE, JWT). https://github.com/beatt83/jose-swift

This library supports fully JWS and JWE, the JWT implementation is built on top of that foundation.

Supported JWT features:

• Signing with all JWS algorithms including EDDSA and ES256K.
• Encrypting with all JWE algorithms including ECDH-1PU.
• Nested JWTs (Encrypted+Encrypted, Encrypted+Signed, Signed+Encrypted).
• Validation of iss, sub, aud, exp, nbf, iat.
• Support of jti, typ and cty.

[beatt83]

Hi @byron-okta. Hope everything is ok.

Ive seen that as well 2 other PRs to add libraries to jwt.io website are waiting some for more than 6 months already.
(#668)
(#664)

You seem to be the one maintaining this repo, so I would kindly ask if it's possible to review this PR and the other 2 open, or point to whom should we ask to review?
All this PR's followed the instructions on how request to add libraries, and although I understand the it might take time, 6 months waiting without a reply is a lot.

jwt.io is an important resource to share and find JWT libraries for your platform/language.