Add version headers

Summary: Last big batch of adding license headers in Java code where they were missing.

Reviewed By: jknoxville

Differential Revision: D15164860

fbshipit-source-id: 4c0a61eec7b5659fdc674ebed85f2ade60dd0aa0

android/third-party/native.gradle

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE file
+ * in the root directory of this source tree.
+ */
+
 import org.apache.tools.ant.filters.ReplaceTokens
 
 // !!!