UI - control groups (#4947)

* add routes for control groups in tools, settings, access (#4718)
* UI control group - storage, request, authorization, and unwrapping (#4899)
* UI control groups config (#4927)

ui/app/lib/control-group-error.js

@@ -0,0 +1,16 @@
+import Ember from 'ember';
+
+export default class ControlGroupError extends Ember.Error {
+  constructor(wrapInfo) {
+    let {accessor, creation_path, creation_time, token, ttl} = wrapInfo;
+    super();
+    this.message = 'Control Group encountered';
+
+    // add items from the wrapInfo object to the error
+    this.token = token;
+    this.accessor = accessor;
+    this.creation_path = creation_path;
+    this.creation_time = creation_time;
+    this.ttl = ttl;
+  }
+}