Parcelize: Add the Parcelize compiler plugin with sources extracted from Android Extensions plugin (KT-40030)

plugins/parcelize/parcelize-compiler/testData/boxLib.kt

@@ -0,0 +1,18 @@
+package test
+
+import android.os.Parcel
+
+fun parcelTest(block: (Parcel) -> Unit): String {
+    val parcel = Parcel.obtain()
+    try {
+        block(parcel)
+        return "OK"
+    } finally {
+        parcel.recycle()
+    }
+}
+
+inline fun <reified T> readFromParcel(parcel: Parcel): T {
+    val creator = T::class.java.getDeclaredField("CREATOR").get(null)
+    return creator::class.java.getDeclaredMethod("createFromParcel", Parcel::class.java).invoke(creator, parcel) as T
+}