add vpc endpoint security group id to outputs

Author: dcmcand

outputs.tf

@@ -184,4 +184,10 @@ output "additional_cidr_blocks_to_association_ids" {
 output "igw_id" {
   value       = module.vpc.igw_id
   description = "The ID of the Internet Gateway"
+}
+
+output "vpc_endpoint_sg_id" {
+  value = aws_security_group.endpoint_security_group.id
+  description = "ID of the security group that allows access to the vpc endpoints"
+  
 }