Mechanism to add Port annotation via netcfg

- intended to be used for driver to support ONOS-5895

Change-Id: Iddcf6f1b99273e8f8670b5f64fc9831e5f4ce3cd
diff --git a/core/net/src/test/resources/org/onosproject/net/config/basics/port_annotation_config.json b/core/net/src/test/resources/org/onosproject/net/config/basics/port_annotation_config.json
new file mode 100644
index 0000000..8a88ed8
--- /dev/null
+++ b/core/net/src/test/resources/org/onosproject/net/config/basics/port_annotation_config.json
@@ -0,0 +1,11 @@
+{
+  "ports" : {
+    "of:0000000000000001/2" : {
+      "annotations" : {
+        "entries" : {
+          "foo" : "bar"
+        }
+      }
+    }
+  }
+}