config_functest.py: Added Rally and Robot automatic installation and configuration
config_functest.py: Added Rally and Robot automatic installation and configuration

JIRA:FUNCTEST-1

Change-Id: Iaa6fc4b5af80288699073b9a0c08d980816e8ade
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

mywulin/functest,opnfv/functest,mywulin/functest,opnfv/functest