Add basic application framework and example application to show interaction between events an NBI

Depends on:

• !340 (merged)
• !344 (merged)
• !349 (merged)
• !342 (merged)

controller/eventService/utils.go

@@ -11,12 +11,6 @@ func amqpURIBuilder(prefix, user, pass, host, port string) string {
 	return fmt.Sprintf("%s%s:%s@%s:%s/", prefix, user, pass, host, port)
 }
 
-// Service is the event service
-type Service interface {
-	PublishEvent(topic string, event event.Event) error
-	CloseConnection()
-}
-
 // MockEventService is used to setup a connection to a broker and publish events to topics.
 type MockEventService struct {
 	Queue map[string][]event.Event