[EKS] [Dashboard]: EKS Dashboard integration with metrics-server

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**Tell us about your request**
It would be nice to be able to see cluster metrics e.g. node and pod CPU/memory usage in the new EKS dashboard. The official kubernetes dashboard currently integrates with `metrics-server` to achieve this, see: https://github.com/kubernetes/dashboard/blob/master/docs/user/integrations.md#metric-integrations

Installing metrics-server to get cluster metrics is already recommended in the AWS kubernetes dashboard tutorial https://docs.aws.amazon.com/eks/latest/userguide/dashboard-tutorial.html so it would be great if the eks console dashboard supported this too.

**Which service(s) is this request for?**
EKS

**Are you currently working around this issue?**
I am still running the kubernetes dashboard pod in our clusters due to the metrics integration.

**Attachments**
Example of dashboard with metrics-server integration:

Start with the Kubernetes Dashboard metric integrations documentation and the AWS EKS dashboard tutorial referenced in the issue, then compare how metrics-server supplies node and pod CPU/memory data. Done means the EKS console dashboard supports metrics-server and displays those cluster metrics, replacing the reported need to run the Kubernetes Dashboard pod.

Written by the indexing model from the issue text.