This is intended to make it easier to define the interaction between cluster selection and scheduling preferences in the sync controller when used for workload types.
Automatic merge from submit-queue (batch tested with PRs 40234, 45885, 42975)
Fed target cluster by label for sync controller
[use clusterselector w/ federated configmap deploys](667dc77444)
**What this PR does / why we need it**: adds the ability to indicate objects are sent to subsets of federated clusters ref #29887
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes
**Special notes for your reviewer**:
**Release note**:
```release-note
```
fix test error formatting
updates from comments
update gofmt
simplify tests
add to new sync controller
add tests
remove configmap changes due to rebase
updates from review
refactor tests to be based on operations
improvements from review
updates from rebase
rebase to #45374
updates from review
refactor SendToCluster for tests
fix import order
rebase to upstream
