Automatic merge from submit-queue (batch tested with PRs 48497, 48604, 48599, 48560, 48546)
Move pkg/apimachinery/test to apimachinery
Fixes https://github.com/kubernetes/kubernetes/issues/48265
for circular dependency reason, all the test file contain both `"k8s.io/apimachinery/pkg/apis/meta/v1"` and `"k8s.io/apimachinery/pkg/runtime"` is hard to move to a ideal location, so I create a separated test package for those files
I also bump the example package :https://github.com/kubernetes/kubernetes/tree/master/staging/src/k8s.io/apiserver/pkg/apis/example here for apimachinery, @sttts told me it's ok if to bump file if only for test EDIT: seems it's no need to bump, will update soon
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NONE
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