Operator Framework Packaging

https://github.com/microsoft/reverse-proxy/tree/main/src/OperatorFramework includes 5 new packages that we don't anticipate owning long term. For preview11 and 1.0 we need to decide if we should directly ship these as public packages and APIs, or if we want to embed them as internal dependencies / APIs.

We'll need to make a similar decision about shipping https://github.com/microsoft/reverse-proxy/tree/main/src/ReverseProxy.Kubernetes.Ingress, the contents of which are similar to the single-file exe scenario we haven't built yet. This should likely be moved to the samples folder.