Implement CBOR support

[gman0]

Upstream added CBOR support in v1.32 k8s release. This a tracker to add that functionality. This work may entail changes in client-go, kcp and kubernetes repos too, with the respective trackers for the partial tasks to be filled in once we start working on this.

KEP: https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/4222-cbor-serializer

Related commits in upstream's code-generator:

• kubernetes/code-generator@448d651
• kubernetes/code-generator@9158437