WebUI: Add support for management of user short name resolution
    
    Added field into idview details page and into server config where
    the order of domains used while searching for user. Domains can
    be separated by ':' character.
    
    https://pagure.io/freeipa/issue/6372
    
    Reviewed-By: Simo Sorce <ssorce@redhat.com>
    Reviewed-By: Petr Vobornik <pvoborni@redhat.com>