Added example plugin registry

Change-Id: I80daa31b6bdbaa9e6d6e81d62e6c34400509844a
diff --git a/dev/js/src/util.js b/dev/js/src/util.js
index cb60c2a..27c3d8d 100644
--- a/dev/js/src/util.js
+++ b/dev/js/src/util.js
@@ -83,6 +83,9 @@
   KorAP.API = KorAP.API || {};
   KorAP.Locale = KorAP.Locale || {};
 
+  // This should load plugin/server
+  KorAP.Plugin = KorAP.Plugin || {};
+
   const loc = KorAP.Locale;
   loc.OR  = loc.OR  || 'or';
   loc.AND = loc.AND || 'and';