[loader] Make recipe engine support examples/ module subdir

recipe_modules/json/example.resources/cool_script.py

Index: recipe_modules/json/example.resources/cool_script.py
diff --git a/recipe_modules/json/example.resources/cool_script.py b/recipe_modules/json/example.resources/cool_script.py
deleted file mode 100755
index 3c71c7d2574b651a47665ce64f9f9ddcf4771de3..0000000000000000000000000000000000000000
--- a/recipe_modules/json/example.resources/cool_script.py
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env python
-# Copyright 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import sys
-
-def main(argv):
-  with open(argv[2], 'w') as f:
-    f.write(argv[1])
-  return 0
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))