feat(olm): adding operator lifecycle manager

This deployment and crd allow us to use https://operatorhub.io/
this source is very usefull for operator deployments

base/olm/resources/mandatory-operators/resources/rabbitmq-cluster-operator.yaml

@@ -0,0 +1,12 @@
+apiVersion: operators.coreos.com/v1alpha1
+kind: Subscription
+metadata:
+  name: my-rabbitmq-cluster-operator
+  namespace: operators
+spec:
+  channel: stable
+  #  startingCSV: 2.7.0
+  #  installPlanApproval: Manual
+  name: rabbitmq-cluster-operator
+  source: operatorhubio-catalog
+  sourceNamespace: olm