resources: orgainize directory.

Should make it easier to ask just for images.

Change-Id: If821743dc924c4bfbc6b2b2d29b14affde7b3afd
Reviewed-on: https://skia-review.googlesource.com/82684
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
diff --git a/gm/copyTo4444.cpp b/gm/copyTo4444.cpp
index 97e6f0a..b860dca 100644
--- a/gm/copyTo4444.cpp
+++ b/gm/copyTo4444.cpp
@@ -32,7 +32,7 @@
 
     virtual void onDraw(SkCanvas* canvas) {
         SkBitmap bm, bm4444;
-        if (!GetResourceAsBitmap("dog.jpg", &bm)) {
+        if (!GetResourceAsBitmap("images/dog.jpg", &bm)) {
             SkDebugf("Could not decode the file. Did you forget to set the "
                      "resourcePath?\n");
             return;