Add Jenkins build hooks for CI

The initial Jenkinsfile won't push to docker hub as k8s need to be configured first. The goal of this is to ensure that the patches don't break or have errors.

assigned to @malowe

added statetodo label

added Infra label

changed milestone to %1.0

added statewip label and removed statetodo label

mentioned in merge request !4 (merged)

added statereview label and removed statewip label

mentioned in commit 59bea6d1

closed

added statedone label and removed statereview label