Orcid two factor authentication

[JackBlackLight]

Thanks for your work on this plugin. We will be using it on our OJS instance with OrcId as our openid provider, but in addition, we are requiring our users to enable 2FA in their OrcId accounts. The code in this PR enforces the 2FA requirement and adds this option to the OrcId section of the settings form.

Also, I was able to get the plugin working without requiring the vendor autoloader.php file on line 3 of OpenIDHandler. I'm not sure if I’m missing something important there or if that is leftover from a previous approach.

-Jack

[RBoelter]

Without autoload.php and the dependent phpseclib lib, it is not possible to use OpenID providers with a cert modulus and exponent. You need to run composer install to create the vendor folder and load the dependencies. It might work with ORCID without autoload, but I am 100% sure that you have eliminated e.g. Keycloak as provider.

[RBoelter]

change // $loader = require('plugins/generic/openid/vendor/autoload.php');
to $loader = require('plugins/generic/openid/vendor/autoload.php');
and run composer install in your terminal

[JackBlackLight]

Thanks for your feedback. I've restored the autoloader requirement.