Merge pull request #50805 from bsalamat/preemption_metacompute

Automatic merge from submit-queue

Add support to modify precomputed predicate metadata upon adding/removal of a pod

**What this PR does / why we need it**: This PR adds capability to change precomputed predicate metadata and let's us add/remove pods to the precomputed metadata efficiently without the need ot recomputing everything upon addition/removal of pods. This PR is needed as a part of adding preemption logic to the scheduler.

**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**:
To make the review process a bit easier, there are three commits. The cleanup commit is only moving code and renaming some functions, without logic changes.

**Release note**:

```release-note
NONE
```
ref/ #47604
ref/ #48646

/assign @wojtek-t 

@kubernetes/sig-scheduling-pr-reviews @davidopp

plugin/pkg/scheduler/algorithm/predicates/predicates_test.go

@@ -1550,7 +1550,7 @@ func TestServiceAffinity(t *testing.T) {
 			// Reimplementing the logic that the scheduler implements: Any time it makes a predicate, it registers any precomputations.
 			predicate, precompute := NewServiceAffinityPredicate(schedulertesting.FakePodLister(test.pods), schedulertesting.FakeServiceLister(test.services), FakeNodeListInfo(nodes), test.labels)
 			// Register a precomputation or Rewrite the precomputation to a no-op, depending on the state we want to test.
-			RegisterPredicatePrecomputation("checkServiceAffinity-unitTestPredicate", func(pm *predicateMetadata) {
+			RegisterPredicateMetadataProducer("ServiceAffinityMetaProducer", func(pm *predicateMetadata) {
 				if !skipPrecompute {
 					precompute(pm)
 				}