Implements https://pkg.go.dev/k8s.io/api/discovery/v1#EndpointSlice
This resourcetype is disabled by default as they are very verbose and
have a high cardinality.
Metrics from endpointslices can be used to identify if specific pods are
part of an endpoint and thus discoverable through a service.
Signed-off-by: Manuel Rüger <manuel@rueg.eu>
Manuel Rüger