Use KOps add-on to install metrics server

[Red-GV]

kops offers the Kubernetes Metrics Server as an addon to install during cluster set up. Before trying to install the server in this way, the following questions must be answered:

1. What metrics are lost (if any at all)? There is a service monitor deployed in our current version of the set-up, but would not be going through this route. So, the ask here is to investigate the metrics from the server and see how many of them we need if any.
2. Adding the metrics server when needed. This would take our setup to mainly only adding the server when on Kind. However, for out of the box support with other Kubernetes clusters, maybe a more dynamic approach to checking for the metrics server needs to be employed.