Making sure RSDOCS are available for YANG REST API.

Change-Id: I2d4a1e76a4ee387c13837b1f8eb035b1c276a573
diff --git a/apps/yang/web/src/main/resources/definitions/YangModulesGet.json b/apps/yang/web/src/main/resources/definitions/YangModulesGet.json
new file mode 100644
index 0000000..e6307dc
--- /dev/null
+++ b/apps/yang/web/src/main/resources/definitions/YangModulesGet.json
@@ -0,0 +1,3 @@
+{
+  "type": "object"
+}