feat: Add new gcloud commands, API clients, and third-party libraries across various services.

gcloud auth application-default login/google-cloud-sdk/platform/gsutil/third_party/mock/README.rst

@@ -0,0 +1,29 @@
+mock is a library for testing in Python. It allows you to replace parts of
+your system under test with mock objects and make assertions about how they
+have been used.
+
+mock is now part of the Python standard library, available as `unittest.mock
+<https://docs.python.org/dev/library/unittest.mock.html>`_ in Python 3.3
+onwards.
+
+This package contains a rolling backport of the standard library mock code
+compatible with Python 2.6 and up, and 3.3 and up.
+
+Please see the standard library documentation for more details.
+
+:Homepage: `Mock Homepage`_
+:Download: `Mock on PyPI`_
+:Documentation: `Python Docs`_
+:License: `BSD License`_
+:Support: `Mailing list (testing-in-python@lists.idyll.org)
+ <http://lists.idyll.org/listinfo/testing-in-python>`_
+:Issue tracker: `Github Issues
+ <https://github.com/testing-cabal/mock/issues>`_
+:Build status:
+  .. image:: https://travis-ci.org/testing-cabal/mock.svg?branch=master
+      :target: https://travis-ci.org/testing-cabal/mock
+
+.. _Mock Homepage: https://github.com/testing-cabal/mock
+.. _BSD License: http://github.com/testing-cabal/mock/blob/master/LICENSE.txt
+.. _Python Docs: https://docs.python.org/dev/library/unittest.mock.html
+.. _mock on PyPI: http://pypi.python.org/pypi/mock