implemented the simplest web user interface possible

resources/config.edn

@@ -24,6 +24,9 @@
   :max-body 524288 ;; 512kb, small but enough
   :max-ws 524288}
 
+ :wui
+ {:port #long #or [#env WUI_PORT 3000]}
+
  ;; list of tradable securities
  :securities
  [{:sec-id :foo}