API for supporting resources

Change-Id: I4cdb2bb64986b72d4bf1d49c939c95520e40b8b7
diff --git a/src/main/java/com/android/tools/r8/DataResource.java b/src/main/java/com/android/tools/r8/DataResource.java
new file mode 100644
index 0000000..4609c97
--- /dev/null
+++ b/src/main/java/com/android/tools/r8/DataResource.java
@@ -0,0 +1,10 @@
+// Copyright (c) 2018, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+package com.android.tools.r8;
+
+public interface DataResource extends Resource {
+  char SEPARATOR = '/';
+
+  String getName();
+}