reformat CI part, add vPing description, remove images, replace them with ASCII description
reformat CI part, add vPing description, remove images, replace them with ASCII description

JIRA: FUNCTEST-1

Change-Id: Ib19539bf6639a7594ac0994dc7cc3e080ac135e7
Signed-off-by: morganrOL <863ecccd07b4194c40ddc432b982c8c67e56599a@orange.com>

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