Extended Grafana Dashboard

This MR adds an extended grafana dashboard:

• Add a CPU usage per node graph.
• Add a Memory usage per node graph.
• Add a SUT instances graph (use up-metric and RE instead of conusmergroup).
• For flink: adds an Input rate versus read read graph.
• Add CPU load per pod graph.
• Add Deployment overview graph.

For SE cluster add Prometheus monitoring source:

• http://kube1-1.se.internal:31133
• Set access method to browser
• Adjust sources