Support from_jwk for Ed25519Algorithm

[dajiaji]

I'd like to use get_signing_key_from_jwk() for JWT with alg=EdDSA.

But, at the moment, it seems that pyjwt does not support it because Ed25519Algorithm does not have from_jwk().

Do you have a plan to support that?
If you don't have the plan, I can send a PR for that.

I'd appreciate it if you can tell me the plan to support EdDSA-based token.

[crgwbr]

For reference, looks like the spec for this is in RFC 8037.

[dajiaji]

Yes, in other words, I need from_jwt() for JWT kty=OKP compliant with RFC8037.