Added cluster name to outputs

Author: antonbabenko

outputs.tf

@@ -5,3 +5,8 @@ output "this_ecs_cluster_id" {
 output "this_ecs_cluster_arn" {
   value = "${element(concat(aws_ecs_cluster.this.*.arn, list("")), 0)}"
 }
+
+output "this_ecs_cluster_name" {
+  description = "The name of the ECS cluster"
+  value       = "${var.name}"
+}