added PROVISING_PROXY

gso/oss-params-example.json

@@ -16,5 +16,10 @@
       "V4": {"container": "1.1.8.0/24", "mask": 31},
       "V6": {"container": "dead:beef::/64", "mask": 96}
     }
+  },
+  "PROVISIONING_PROXY": {
+    "api_base": "http://localhost:44444",
+    "auth": "Bearer <token>",
+    "api_version": 1123
   }
 }
\ No newline at end of file