[ONOS-7302] UT for value namespace in identifier. JSON/XML serializer change for value ns.

Change-Id: Ia5e77c2af822455d36cd307a38c91ba6a28597cd
diff --git a/serializers/json/src/test/resources/identity-types-second.yang b/serializers/json/src/test/resources/identity-types-second.yang
new file mode 100644
index 0000000..f5742b2
--- /dev/null
+++ b/serializers/json/src/test/resources/identity-types-second.yang
@@ -0,0 +1,19 @@
+module  identity-types-second{
+    yang-version 1;
+    namespace "identity:list:second:ns:test:json:ser";
+    prefix "sec";
+
+    import identity-types {
+        prefix "type";
+    }
+
+    revision "2013-07-15";
+
+    identity virtual {
+        base type:int-type;
+    }
+
+    identity Ethernet {
+        base type:physical;
+    }
+}