Add a command to generate configs for hound

etsy's hound is a simple source code indexer. The hardest part about
running it is making a config file from our projects.yaml. So that's
done now.

Change-Id: Ie4b6509947f58407c4cc6f5a2c7c2bc84c619ce9
diff --git a/setup.cfg b/setup.cfg
index a2a775d..dd10192 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,6 +20,7 @@
 console_scripts =
     close-pull-requests = jeepyb.cmd.close_pull_requests:main
     create-cgitrepos = jeepyb.cmd.create_cgitrepos:main
+    create-hound-config = jeepyb.cmd.create_hound_config:main
     expire-old-reviews = jeepyb.cmd.expire_old_reviews:main
     manage-projects = jeepyb.cmd.manage_projects:main
     notify-impact = jeepyb.cmd.notify_impact:main