hosts: Display assigned ID view by default in host-find and show commands
    
    Makes ipaassignedidview a default attribute and takes care about the
    conversion from the DN to the proper ID view name.
    
    https://fedorahosted.org/freeipa/ticket/4774
    
    Reviewed-By: Petr Vobornik <pvoborni@redhat.com>
    Reviewed-By: Jan Cholasta <jcholast@redhat.com>