Add skip-billing key

Signed-off-by: Tamal Saha <[email protected]>

Author: tamalsaha

api/v1/cluster.go

@@ -60,6 +60,7 @@ const (
 	ClusterProfileLabel    string = "cluster.appscode.com/profile"
 
 	AceOrgIDKey            string = "ace.appscode.com/org-id"
+	AceSkipBillingKey      string = "ace.appscode.com/skip-billing"
 	ClientOrgKey           string = "ace.appscode.com/client-org"
 	ClientOrgMonitoringKey string = "ace.appscode.com/client-org-monitoring"
 	ClientKeyPrefix        string = "client.ace.appscode.com/"