Tests for ED25519

[bkmgit]

The Crypto Multi Buffer library has an ED25519 implementation. Might it be worth adding tests for this implementation? In particular those specified https://github.com/novifinancial/ed25519-speccheck

[aelizaro]

Hi @bkmgit, sorry for the delayed responce! Thank you for the good proposal. We will certainly study that and consider adding such test suite.