[ONOS-5012] implement RESTconf server

 - fix javadoc longer than 80 char limit
 - fix javadoc that missing @params
 - chain calls to StringBuilder.append()
 - combine constant strings in place

Change-Id: Ie2ef4fd4c19e955ad2d5a5584f5017a842abb790
diff --git a/protocols/restconf/server/utils/src/test/resources/textNode.json b/protocols/restconf/server/utils/src/test/resources/textNode.json
new file mode 100644
index 0000000..8894cfb
--- /dev/null
+++ b/protocols/restconf/server/utils/src/test/resources/textNode.json
@@ -0,0 +1,4 @@
+{
+  "name": "Huawei",
+  "surname": "Bangalore"
+}
\ No newline at end of file