Added logic for DB recovery from backup

- When `dbRecovery` is configured with a snapshot name, a recovery from backup is pending
  - The recovery is triggered by a manual deletion of the Cluster resource by the user
  - The recovered volume is excluded from the automatic volume cleanup

Signed-off-by: Danny Zaken <dannyzaken@gmail.com>

Author: dannyzaken

pkg/cnpg/cnpg.go

@@ -616,6 +616,10 @@ func GetCnpgBackupObj(namespace string, name string) *cnpgv1.Backup {
 			APIVersion: CnpgAPIVersion,
 			Kind:       "Backup",
 		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      name,
+			Namespace: namespace,
+		},
 	}
 	return cnpgBackup
 }