Add proxy role to designate models

Change-Id: I786eef39482ae91c76cad6163e544a84453f4973
diff --git "a/\173\173 cookiecutter._env_name \175\175/features/designate/proxy.yml" "b/\173\173 cookiecutter._env_name \175\175/features/designate/proxy.yml"
new file mode 100644
index 0000000..7395c2c
--- /dev/null
+++ "b/\173\173 cookiecutter._env_name \175\175/features/designate/proxy.yml"
@@ -0,0 +1,3 @@
+classes:
+- system.nginx.server.proxy.openstack.designate
+- environment.{{ cookiecutter._env_name }}.features.designate