chore(LifecycleEvent): change to PascalCase / rename

BREAKING CHANGE

Closes #3863

- LifecycleEvent.onInit => LifecycleEvent.OnInit
- LifecycleEvent.onDestroy => LifecycleEvent.OnDestroy
- LifecycleEvent.onChange => LifecycleEvent.OnChanges
- LifecycleEvent.onCheck => LifecycleEvent.DoCheck
- LifecycleEvent.onAllChangesDone => LifecycleEvent.AfterContentChecked
- OnCheck.onCheck() => DoCheck.doCheck()
- OnChange.onChange() => OnChanges.onChanges()
- OnAllChangesDone.onAllChangesDone() => AfterContentChecked.afterContentChecked

Closes #3851

modules/benchmarks/src/change_detection/change_detection_benchmark.ts

@@ -388,5 +388,5 @@ class DummyDispatcher implements ChangeDispatcher {
   }
   notifyOnBinding(bindingTarget, newValue) { throw "Should not be used"; }
   logBindingUpdate(bindingTarget, newValue) { throw "Should not be used"; }
-  notifyOnAllChangesDone() {}
+  notifyAfterContentChecked() {}
 }