crypto: add support for x25119 and x448 KeyObjects

PR-URL: https://github.com/nodejs/node/pull/26774
Refs: https://github.com/nodejs/node/issues/26626


Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>