Convert Exchange to a Terraform module

Azure/Terraform/exchange.tf

@@ -0,0 +1,10 @@
+## Remove the block comment to enable the creation of the Exchange server
+/*
+module "exchange" {
+  source = "./modules/exchange"
+  resource_group_name = azurerm_resource_group.detectionlab.name
+  region = var.region
+  subnet_id = azurerm_subnet.detectionlab-subnet.id
+}
+*/
+