AssetManager2: Add GetResourceId

Add ability to lookup a resource by name.

Test: make libandroidfw_tests
Change-Id: I262ba5ce4c9892458226fbdb44cf21f9877fb92d
diff --git a/libs/androidfw/Android.bp b/libs/androidfw/Android.bp
index ecf6bd4..e764034 100644
--- a/libs/androidfw/Android.bp
+++ b/libs/androidfw/Android.bp
@@ -36,6 +36,7 @@
         "misc.cpp",
         "ObbFile.cpp",
         "ResourceTypes.cpp",
+        "ResourceUtils.cpp",
         "StreamingZipInflater.cpp",
         "TypeWrappers.cpp",
         "Util.cpp",