Create a PolicySet for Kubernetes-Hardening

[ch-stark]

Purpose of this PolicySet should be that it is working generic for all Kubernetes-Clusters

Policy will be updated:

• check for namespaces in terminating
• missing labels
• pods in pending state

[ch-stark]

we can also benefit from features to check custom interval:
https://github.com/stolostron/policy-generator-plugin/blob/main/docs/policygenerator-reference.yaml#L31