Add TOSCA files for BBSim targets in SiaB Makefile

Change-Id: I0801c3d67e2569c4bf22ef8809e2be853e985334
diff --git a/examples/bbsim-dhcp.yaml b/examples/bbsim-dhcp.yaml
new file mode 100644
index 0000000..89f14aa
--- /dev/null
+++ b/examples/bbsim-dhcp.yaml
@@ -0,0 +1,58 @@
+# Copyright 2017-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.
+
+# Example TOSCA to configure dhcpl2relay when running BBSim standalone with SiaB
+# Load into xos-tosca with:
+#  curl -H "xos-username: admin@opencord.org" -H "xos-password: letmein" -X POST --data-binary @bbsim-dhcp.yaml http://127.0.0.1:30007/run
+
+tosca_definitions_version: tosca_simple_yaml_1_0
+imports:
+  - custom_types/bngportmapping.yaml
+  - custom_types/onosapp.yaml
+  - custom_types/serviceinstanceattribute.yaml
+
+description: Create a simulated OLT Device in VOLTHA
+topology_template:
+  node_templates:
+
+    # map the BNG to a port
+    # this is not really used by BBSIM as there's no data-plane traffic,
+    # but it's required by NEM to configure the crossconnect
+    bngmapping:
+      type: tosca.nodes.BNGPortMapping
+      properties:
+        s_tag: any
+        switch_port: 1
+
+    # DHCP L2 Relay config
+    onos_app#dhcpl2relay:
+      type: tosca.nodes.ONOSApp
+      properties:
+        name: dhcpl2relay
+        must-exist: true
+
+    dhcpl2relay-config-attr:
+      type: tosca.nodes.ServiceInstanceAttribute
+      properties:
+        name: /onos/v1/network/configuration/apps/org.opencord.dhcpl2relay
+        value: >
+          {
+            "dhcpl2relay" : {
+              "useOltUplinkForServerPktInOut" : true
+            }
+          }
+      requirements:
+        - service_instance:
+            node: onos_app#dhcpl2relay
+            relationship: tosca.relationships.BelongsToOne