Add ignore_projects to filter gnocchi events
Add ignore_projects to filter gnocchi events

Without this, ceilometer db gets hammered with gnocchi swift events.
Keystone creds are required so middleware can query for id.

Related change:  I5c0f4f1a2c7fe7eb39ea6441970e9ac0946a4ec1

Change-Id: I9a7a80252703e470a69dc10352e7ece45ab23150

openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates