Added VPN GW and Tunnel modules.

modules/cloud-vpn/outputs.tf

@@ -0,0 +1,15 @@
+output "ip" {
+  value = var.vpn_external_ip != null ? data.google_compute_address.vpn_ip[0].address : google_compute_address.vpn_ip[0].address
+}
+
+output "network_name" {
+  value = var.network_name
+}
+
+output "id" {
+  value = google_compute_vpn_gateway.gw.id
+}
+
+output "name" {
+  value = google_compute_vpn_gateway.gw.name
+}