Add docs/quickstart for running the Coder control plane and workspaces on Openshift. We have documentation for Coder Classic we can reference: https://coder.com/docs/coder/latest/guides/admin/helm-charts

• Set up OpenShift Cluster
• Deploy Coder (control plane)
• Deploy Coder (workspaces)
• Add to coder.com/docs
• Add rootless podman template
• Set up openshift-dogfood template