OpenShift deployment configuration - Monitoring

• add scc nonroot-v2 to openshift deployment
• add Network Attachment Definition if Istio and Openshift are enabled
• add configuration values to separate BB prometheus from OCP prometheus
• fix alertmanager deployment

assigned to @echuang, @arisanch, and @cmays20

mentioned in merge request !205 (merged)

mentioned in merge request big-bang/bigbang!2837 (merged)

closed with merge request big-bang/bigbang!2837 (merged)

mentioned in commit big-bang/bigbang@da6f9f90

removed from epic big-bang/pipeline-templates&3 (closed)