Return pylint status code for modules rated 10/10
Return pylint status code for modules rated 10/10

It ensures that no pylint errors or warnings can be introduced by a
new change. The first pylint call (to report issues) will be safely
removed when all pylint errors and warnings are fixed in functest.

Change-Id: I9ff7b7d5a7738c3d6d769267a78c28828c3e4523
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

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