Introduce quick-fix "create expected class / function / property"

#KT-27075 Fixed

idea/testData/multiModuleQuickFix/expectClass/header/My.kt

@@ -0,0 +1,2 @@
+// My: to be implemented
+// DISABLE-ERRORS

idea/testData/multiModuleQuickFix/expectClass/header/My.kt.after

@@ -0,0 +1,13 @@
+// My: to be implemented
+// DISABLE-ERRORS
+expect class My {
+    fun foo(param: String): Int
+    fun String.bar(y: Double): Boolean
+    fun baz()
+
+    constructor(flag: Boolean)
+
+    val isGood: Boolean
+    var status: Int
+
+}