Add google-endpoints to third_party/.

third_party/google-endpoints/packaging/utils.py

Index: third_party/google-endpoints/packaging/utils.py
diff --git a/third_party/google-endpoints/packaging/utils.py b/third_party/google-endpoints/packaging/utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..942387cef5d75f299a769b1eb43b6c7679e7a3a0
--- /dev/null
+++ b/third_party/google-endpoints/packaging/utils.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import re
+
+
+_canonicalize_regex = re.compile(r"[-_.]+")
+
+
+def canonicalize_name(name):
+    # This is taken from PEP 503.
+    return _canonicalize_regex.sub("-", name).lower()