Refactor functest_utils.py script
Refactor functest_utils.py script

JIRA: FUNCTEST-129

Change-Id: Id5202b1830f7efa77fdb8023d4eeb93775168d29
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

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