add vSGWU services

Change-Id: I8fb098b5cf81a6dc9061b6fd4187ce62164997c7
diff --git a/xos/tosca/custom_types/vsgwu.m4 b/xos/tosca/custom_types/vsgwu.m4
new file mode 100644
index 0000000..a0e4983
--- /dev/null
+++ b/xos/tosca/custom_types/vsgwu.m4
@@ -0,0 +1,27 @@
+tosca_definitions_version: tosca_simple_yaml_1_0
+
+# compile this with "m4 vsgwu.m4 > vsgwu.yaml"
+
+# include macros
+include(macros.m4)
+
+node_types:
+    tosca.nodes.VSGWUService:
+        derived_from: tosca.nodes.Root
+        description: >
+            VSGWU Service
+        capabilities:
+            xos_base_service_caps
+        properties:
+            xos_base_props
+            xos_base_service_props
+
+    tosca.nodes.VSGWUTenant:
+        derived_from: tosca.nodes.Root
+        description: >
+            VSGWU Tenant
+        properties:
+            xos_base_tenant_props
+            tenant_message:
+                type: string
+                required: false