e36dedd ui_tests: add funcs to add/remove users public SSH key

Authored and Committed by mreznik 6 years ago
    ui_tests: add funcs to add/remove users public SSH key
    
    Add funcs to add/remove users public SSH key.
    
    https://pagure.io/freeipa/issue/7441
    
    Reviewed-By: Petr Vobornik <pvoborni@redhat.com>