Confirmation + Controlling API add

infrastructure/api.go

@@ -52,6 +52,10 @@ func GetWorkflowPeerIDs(wfID string, req *tools.APIRequest) ([]string, error) {
 // Planner subscriptions
 // ---------------------------------------------------------------------------
 
+func SubscribeSessionConfirmation(executionsID string) (<-chan struct{}, func()) {
+	return execution.SubscribeSessionConfirmation(executionsID)
+}
+
 func SubscribePlannerUpdates(peerIDs []string) (<-chan string, func()) {
 	return planner.GetPlannerService().SubscribePlannerUpdates(peerIDs...)
 }