Add task definition and execution role outputs (#19)

* Added execution role to module outputs

* Added task definition outputs

Author: Fdgonzalez

outputs.tf

@@ -37,3 +37,23 @@ output "log_group_name" {
   description = "The name of the Cloudwatch log group for the task."
   value       = aws_cloudwatch_log_group.main.name
 }
+
+output "execution_role_arn" {
+  description = "The Amazon Resource Name (ARN) specifying the ECS execution role."
+  value       = aws_iam_role.execution.arn
+}
+
+output "execution_role_name" {
+  description = "The name of the ECS execution role."
+  value       = aws_iam_role.execution.name
+}
+
+output "task_definition_arn" {
+  description = "The Amazon Resource Name (ARN) of the task definition created"
+  value = aws_ecs_task_definition.task.arn
+}
+
+output "task_definition_name" {
+  description = "The name of the task definition created"
+  value = aws_ecs_task_definition.task.arn
+}