Use spec arguments for non-durable, AD, exclusive queue declaration

References #44

Author: acogoluegnes

src/main/java/reactor/rabbitmq/Sender.java

@@ -238,7 +238,7 @@ public Mono<AMQP.Queue.DeclareOk> declareQueue(QueueSpecification specification,
                 .durable(false)
                 .exclusive(true)
                 .autoDelete(true)
-                .arguments(null)
+                .arguments(specification.getArguments())
                 .build();
         } else {
             declare = new AMQImpl.Queue.Declare.Builder()