tests: Add docker stability test
tests: Add docker stability test

This stability test will run a container and the perform
several execs to that container.

Fixes #421

Signed-off-by: Gabriela Cervantes <7478955d4356a4dc893d64d1345a99c9f58c91ab@intel.com>

devimc/tests,chavafg/tests,sboeuf/tests,devimc/tests,bwarden/tests,clearcontainers/tests,clearcontainers/tests,bwarden/tests,sboeuf/tests,chavafg/tests,MarioCarrilloA/tests,MarioCarrilloA/tests