Add model for contrail4.0

Change-Id: I94b65dd06ce8eb376dd8e9bcf96d786621d32233
diff --git a/tcp_tests/templates/cookied-bm-contrail40/underlay--meta-data.yaml b/tcp_tests/templates/cookied-bm-contrail40/underlay--meta-data.yaml
new file mode 100644
index 0000000..a594a53
--- /dev/null
+++ b/tcp_tests/templates/cookied-bm-contrail40/underlay--meta-data.yaml
@@ -0,0 +1,4 @@
+| # All the data below will be stored as a string object

+  instance-id: iid-local1

+  hostname: {hostname}

+  local-hostname: {hostname}