Trust: add auto private groups option
    
    Add a new option --auto-private-groups to the command
    ipa idrange-add / ipa idrange-mod.
    The option can take true/false/hybrid values.
    
    Fixes: https://pagure.io/freeipa/issue/8807
    Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>