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Moving KubeSchedulerConfiguration from ComponentConfig API types to staging repos

**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes kubernetes/kubeadm#528

**Special notes for your reviewer**:
/cc luxas timothysc 
/cc @kubernetes/sig-cluster-lifecycle-pr-reviews 
**Release note**:

```release-note
Moving KubeSchedulerConfiguration from ComponentConfig API types to staging repos
```