[Commonizer] ClassSuperTypeCommonizer: Include transitive supertypes

This commit still has some left-over todos that shall be done
in a separate commit.

TODOs:
- CirClassifierIndex is calculated once too often
- Reconsider position of classifierIndices in 'CirKnownClassifiers'
- Add documentation/description to complicated 'ClassSuperTypeCommonizer'
- Add documentation/description to CirSupertypesResolver

^KT-47430 Verification Pending

native/commonizer/testData/classifierCommonization/supertypes/commonized/common/package_root.kt

@@ -8,7 +8,7 @@ expect abstract class A2() : A1 {
     abstract fun function2(): Int
 }
 
-expect class A3() : A2 {
+expect class A3() : A2, A1 {
     override val property1: Int
     override val property2: Int
     val property3: Int