Test contributions from master

Fix permission for devops-stages files (+x)
Adding the repository to CI/CD pipeline
Adding VIM to OSM option
Adding BRANCH_NAME variable for release tests
Adding prometheus_host env variable for ci/cd

git cherry-pick -n e1a9c570^..72556ca8

Change-Id: Ia2050a13afc383a5491ba40f8f49af0d8ac49d30
Author: Felipe Vicens <felipe.vicens@atos.net>
Signed-off-by: beierlm <mark.beierl@canonical.com>