If results is empty in cli/run.py then we should raise
a RuntimeError otherwise, it will returns 0 without any
information.
Change-Id: Ic38690bd719658fe02a30691d112f3429523802a
This review adds a CLI for the Validation Framework which will become
the only entry point to run the Validation Framework.
It will deprecate the tripleo_validatior.py CLI and the
validation.py script.
This patch uses python cliff library to provide nice helpers, shell
and output formats.
Change-Id: I66800ad51cc50f4eb37efabe85fb553dce008101