[CF 4412] Client authentication via OAuth 2.0

This branch was automatically generated by a robot using patches from an
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https://commitfest.postgresql.org/patch/4412

The branch will be overwritten each time a new patch version is posted to
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Patch(es): https://www.postgresql.org/message-id/CAOYmi+khcG43fCHgQ4eOnHq8qehjX8_NRjfPPnOzQ4xxCRkBEw@mail.gmail.com
Author(s): Jacob Champion

Author: Commitfest Bot

src/test/modules/oauth_validator/.gitignore

@@ -2,3 +2,4 @@
 /log/
 /results/
 /tmp_check/
+/oauth_hook_client