Add gerritbot for openstack-glance channel

This commit adds openstack-glance to the list of channels for
gerritbot. This commit initially just has it tracking the glance and
python-glanceclient repos.

Change-Id: I6f25ca8fd34b2d89ff3c0d119b307143b3b54c8d

modules/gerritbot/files/gerritbot_channel_config.yaml

@@ -319,3 +319,14 @@ openstack-cloudkeep:
       - stackforge/barbican
     branches:
       - master
+
+openstack-glance:
+    events:
+      - patchset-created
+      - change-merged
+      - x-vrif-minus-2
+    projects:
+      - openstack/glance
+      - openstack/python-glanceclient
+    branches:
+      - master