LPS-50464 - Migrate User Groups Admin portlet aui-base javascript

Hi Rob,

Attached is an update for https://issues.liferay.com/browse/LPS-50464.

There isn't actually any aui-base migration in this pull.  Just aui-io-plugin migration and fm plugin implementation.  The instance where this portlet uses aui-base (select_user_group.jsp) I left unchanged, as I think we will have to wait until search_container.js gets migrated first.

So if you think it's best we could hold off on these changes until we can migrate the entire portlet.

Please let me know your thoughts.

Thanks!