[ObjCExport] Implement initial sorting and ordering for ObjC translation

^KT-65237

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

@@ -0,0 +1,22 @@
+class Foo {
+    /* Number of parameters increases, relevant for ordering */
+    fun a() = Unit
+    fun a(p0: Int) = Unit
+    fun a(p0: Int, p1: Int) = Unit
+
+    /* Should be ordered a, b, c, but is explicitly placed as a, c, b in source code */
+    fun c() = Unit
+
+    /* Number of parameters decreases, should be orderd in increasing number */
+    fun b(p0: Int, p1: Int) = Unit
+    fun b(p0: Int) = Unit
+    fun b() = Unit
+
+    /* Short get sorted in alphabetical order */
+    val pA = 42
+    val pC = 42
+    val pB = 42
+
+    /* Functions should be prioritised over properties */
+    fun d() = 42
+}