Add Gnocchi and Panko support

- added ability to configure polling_interval
- added panko, gnocchi publishers
- added ability to disable publishers
- parametrized pipelines
- added possibility to create resources in gnocchi

Change-Id: Id0f934def308d005d93378516d03184fa5418a8c
Related-Prod: https://mirantis.jira.com/browse/PROD-17718
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 05d617b..5c5ddf8 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -16,6 +16,9 @@
       ttl: 86400
       publisher:
         default:
+          enabled: true
+          publish_event: true
+          publish_metric: true
       bind:
         host: ${_param:single_address}
         port: 8777