Add an option to hide password based registration

[mgrauer]

Would it be possible to add an option that could hide the password based registration from the registration component? Similar to the way the oauth section is only shown if that option is enabled.

My use case is that a downstream of GWC wants to support OAuth registration only, and not show password based registrations.

[zachmullen]

Yes, PR's welcome!

[zachmullen]

It seems like maybe you just want to use the OAuth component directly rather than the outer Auth component?

[mgrauer]

Yes, that would work for me.