Kubernetes NugGet Packaging

[dpbevin]

Several people have expressed the desire to consume the Kubernetes YARP via NuGet packages. As of 3-April-2022, there are seven different C# projects (in this repo) that comprise the Kubernetes support for YARP.

Proposal

I'm proposing that we collapse these seven projects into a single project before considering NuGet packaging for the Kubernetes support.

There may also be an opportunity to simplify the generalized "OperatorFramework" code as part of the process and make the code more specific to the job at hand.

@specialforest @MihaZupan

[karelz]

Let's track the work and final decision (yes/no) in #1640