Light Classes: Implement light elements for 'extends'/'implements' reference lists. Support adding/removing of super type list entries via light elements.

Fix exception on applying "Convert to class" intention to Java interface with Kotlin inheritor(s)
 #KT-11281 Fixed
(cherry picked from commit 4ec4914)

idea/testData/quickfix/convertJavaInterfaceToClass/kotlinInheritor.after.Dependency.kt

@@ -0,0 +1,9 @@
+interface IK
+
+class C2 : I() {
+
+}
+
+class C3: I(), IK {
+
+}

idea/testData/quickfix/convertJavaInterfaceToClass/kotlinInheritor.after.java

@@ -0,0 +1,4 @@
+// "Convert to 'class'" "true"
+public abstract class <caret>I {
+
+}

idea/testData/quickfix/convertJavaInterfaceToClass/kotlinInheritor.before.Dependency.kt

@@ -0,0 +1,9 @@
+interface IK
+
+class C2 : I {
+
+}
+
+class C3: I, IK {
+
+}

idea/testData/quickfix/convertJavaInterfaceToClass/kotlinInheritor.before.Main.java

@@ -0,0 +1,4 @@
+// "Convert to 'class'" "true"
+public interface <caret>I {
+
+}