[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/BUCK b/protocols/restconf/server/BUCK
index 8b4f0d2..c1383b6 100644
--- a/protocols/restconf/server/BUCK
+++ b/protocols/restconf/server/BUCK
@@ -2,6 +2,7 @@
     '//protocols/restconf/server/api:onos-protocols-restconf-server-api',
     '//protocols/restconf/server/restconfmgr:onos-protocols-restconf-server-restconfmgr',
     '//protocols/restconf/server/rpp:onos-protocols-restconf-server-rpp',
+    '//protocols/restconf/server/utils:onos-protocols-restconf-server-utils',
 ]
 
 onos_app (