Update net.i2p.crypto.eddsa to 0.2.0

[hagau]

Update net.i2p.crypto.eddsa to 0.2.0 to allow loading keys with the new OIDs from draft-ietf-curdle-pkix.
This overrides dependency of net.vrallev.ecc.ecc-25519-java on eddsa-0.1.0.

net.vrallev.ecc.ecc-25519-java is probably not going to get updated anytime soon, since it has been deprecated.

[jellelicht]

Could this and #34 be merged? The CI-failures seem related to old Java version and not indicative of any real issues.

[jplitza]

I have two questions:

1. Is this at all related to the interaction with OpenKeychain? It doesn't look that way to me.
2. Is this really cleaner? Now we have an constant defined at three different places, where previously we had the same constant in all three places.

[hagau]

@jplitza

1. Yes, this is necessary for proper EdDSA support since OpenKeychain uses net.i2p.crypto.eddsa-0.2.0, which doesn't allow generation of EdDSA keys with the old OID, only import. (I think that was the reason, it's been a while)
2. Thanks, I somehow overlooked that. I've moved the constant into Ed25519Verify.

[kruton]

nit: extra space between closing parathenses.

[stickler-ci]

I couldn't find a .stickler.yml file in this repository. I can make one for you, or you can create one by following the documentation.

[CLAassistant]

All committers have signed the CLA.

[dschuermann]

@kruton I was wondering about the CLA. Is it new?

Can you put a LICENSE file in the sshlib repo to clarify the status of this library? Assuming from some headers, it should be Apache v2.

[kruton]

Ah, I should fix any headers... probably IDE auto-inserted. It's 3-Clause BSD originally.