Normalize output from aapt d

Make the output from aapt dump --values resources and aapt dump xmltree normalized, so that it is unambigously displayed
regardless of the content of the strings.

Change-Id: Ia3bff36c4ee1e9a44f474534e154830948beabdf
diff --git a/include/utils/ResourceTypes.h b/include/utils/ResourceTypes.h
index da86da4..ab7b973 100644
--- a/include/utils/ResourceTypes.h
+++ b/include/utils/ResourceTypes.h
@@ -1983,6 +1983,7 @@
 
 #ifndef HAVE_ANDROID_OS
     void print(bool inclValues) const;
+    static String8 normalizeForOutput(const char* input);
 #endif
 
 private: