create CDC event stream CRD (#1570)

* provide event stream API
* check manifest settings for logical decoding before creating streams
* operator updates Postgres config and creates replication user
* name FES like the Postgres cluster
* add delete case and fix updating streams + update unit test
* check if fes CRD exists before syncing
* existing slot must use the same plugin
* make id and payload columns configurable
* sync streams only when they are defined in manifest
* introduce applicationId for separate stream CRDs
* add FES to RBAC in chart
* disable streams in chart
* switch to pgoutput plugin and let operator create publications
* reflect code review and additional refactoring

Co-authored-by: Paŭlo Ebermann <paul.ebermann@zalando.de>

pkg/generated/informers/externalversions/generic.go

@@ -28,6 +28,7 @@ import (
 	"fmt"
 
 	v1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
+	zalandoorgv1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
 	cache "k8s.io/client-go/tools/cache"
 )
@@ -64,6 +65,10 @@ func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource
 	case v1.SchemeGroupVersion.WithResource("postgresqls"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Acid().V1().Postgresqls().Informer()}, nil
 
+		// Group=zalando.org, Version=v1
+	case zalandoorgv1.SchemeGroupVersion.WithResource("fabriceventstreams"):
+		return &genericInformer{resource: resource.GroupResource(), informer: f.Zalando().V1().FabricEventStreams().Informer()}, nil
+
 	}
 
 	return nil, fmt.Errorf("no informer found for %v", resource)