[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/pom.xml b/protocols/restconf/server/pom.xml
index 6ef2700..9874b45 100644
--- a/protocols/restconf/server/pom.xml
+++ b/protocols/restconf/server/pom.xml
@@ -34,6 +34,7 @@
         <module>restconfmgr</module>
         <module>rpp</module>
         <module>app</module>
+        <module>utils</module>
     </modules>
 
     <description>RESTCONF Server Module</description>