Logging expansion

Adds Promtail and Loki to the metrics stack, configuring them as a datasource in grafana on deployment
Adds a dashboard to monitor the system (logs for producer and consumer)
Restructures the base directory so deployment manifests are moved into a deployments folder
Adds selective labels to producer, consumer and addon so that their logs are ingested by promtail

deployment/docker/config/grafana/dashboards/dashboards.yml

@@ -0,0 +1,8 @@
+apiVersion: 1
+
+providers:
+  - name: Knightcrawler
+    folder: Dashboards
+    type: file
+    options:
+      path: /var/lib/grafana/dashboards