Support for session ykopen command to authenticate with credentials stored in a YubiKey.

[luiscript]

How to prevent the exposure of the HSM credentials in the code? I would like to authenticate the session with a YubiKey, just like the yubihsm-shell command session ykopen 1 "default key" "my secret"

Is there any chance to add this?

https://developers.yubico.com/yubihsm-shell/yubihsm-auth.html

Thanks for sharing this code

[baloo]

would love a review on #459 :)