[JIRA] (OVIRT-2183) Automate creation of "poll" jobs

Automate creation of "poll" jobs -------------------------------- Key: OVIRT-2183 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-2183 Project: oVirt - virtualization made easy Issue Type: New Feature Components: Standard CI (Pipelines) Reporter: Barak Korren Assignee: infra As a developer I would like to be able to configure upstream source polling jobs (In other works jobs that execute the "poll-upstream-sources" STDCI stage) from the STDCI YAML file in my project so that I never have to deal with JJB or the 'jenkins' repository. h3. Acceptance Criteria # To get "poll-upstream-sources" jobs working for a certain branch developers should only configure some setting in the STDCI YAML file of that project.