[ObjCExport] Implement initial processing queue (stable order, dependencies, forward declarations)

This commit will introduce the first processing queue
which will take care of properly ordering the 'to translate' symbols
as well as taking care of 'dependency' symbols (aka symbols
mentioned in signatures or as supertypes).

- There are several changes like properly translating
types as ObjCProtocolType instead of ObjCClassType (if origin was an interface)
- Type translation of generics defined on interfaces will also emit id type.
- Add initial nested classes collection to the queue
- Add extension function test, add tickets references

^KT-65237 Verification Pending
^KT-65329 Verification Pending

native/objcexport-header-generator/testData/headers/nestedClass/Foo.kt

@@ -1,3 +1,8 @@
 class A {
-    class B
+    class A1 {
+        class B1
+    }
+    class A2 {
+        class B2
+    }
 }