CKA_PUBLIC_KEY_INFO is new attribute for pub/priv key object and cert object in v2.4+ of PKCS#11.

It is recommended to support it in spec. But, our clients live in current state, so it will be something nice to have in this moment.

This work may needs to take care about backward compatible for created objects and support for new generated objects.

More detail,
CKA_PUBLIC_KEY_INFO is DER-encoded SubjectPublicKeyInfo structure. That is, we need to deal with OpenSSL's API/structure and create new info from exists info.