Needs approval from an approver in each of these files:
- ~~[OWNERS](https://github.com/kubernetes-sigs/kubebuilder-declarative-pattern/blob/master/OWNERS)~~ [justinsb]
Approvers can indicate their approval by writing `/approve` in a comment
Approvers can cancel approval by writing `/approve cancel` in a comment
Though this is a breaking change, reusing the RESTMapper avoids repeated discovery.
Also mark the watch functions as deprecated to support a future move to an internal package.