1. Proposed title of this feature request
Collect number of resources in etcd

2. What is the nature and description of the request?
The number of resources is useful in several scenarios, like kube-apiserver high memory usage.

3. Why does the customer need this? (List the business requirements here)
The information will be useful for OpenShift Support. The number of resources is useful in several scenarios, like kube-apiserver high memory usage.

4. List any affected packages or components.
must-gather