OpeNLogin support

[SmearyThrower]

Is your feature request related to a problem? Please describe.

No

Describe the solution you'd like

Support for OpeNLogin https://www.spigotmc.org/resources/openlogin-1-7x-1-17x.57272/

Describe alternatives you've considered

Try other login plugins

Additional context

Thank you for your amazing work making fast login