Added support for running SiaB with SD-BNG

- new mininet topology with PPPoE server
- new fabric configuration for Ponsim
- new DT-workflow
- new values file to run SD-BNG on SiaB

Change-Id: Ib9d61111d6399e9240afb60bb6a77f152a6ecd01
diff --git a/xos-services/dt-workflow-driver/templates/_tosca.tpl b/xos-services/dt-workflow-driver/templates/_tosca.tpl
new file mode 100644
index 0000000..a0c3278
--- /dev/null
+++ b/xos-services/dt-workflow-driver/templates/_tosca.tpl
@@ -0,0 +1,30 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Copyright 2019-present Open Networking Foundation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/}}
+{{- define "dt-workflow-driver.serviceTosca" -}}
+tosca_definitions_version: tosca_simple_yaml_1_0
+description: Set up dt-workflow-driver service
+imports:
+  - custom_types/dtworkflowdriverservice.yaml
+
+topology_template:
+  node_templates:
+    service#dt-workflow-driver:
+      type: tosca.nodes.DtWorkflowDriverService
+      properties:
+        name: dt-workflow-driver
+        kind: oss
+{{- end -}}