[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/app/pom.xml b/protocols/restconf/server/app/pom.xml
index 0875b99..4f20be1 100644
--- a/protocols/restconf/server/app/pom.xml
+++ b/protocols/restconf/server/app/pom.xml
@@ -51,5 +51,10 @@
             <artifactId>onos-restconf-server-rpp</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-restconf-server-utils</artifactId>
+            <version>${project.version}</version>
+        </dependency>
     </dependencies>
 </project>