Eventhistory: Provide search columns for quick filters

fixes #9497

modules/monitoring/library/Monitoring/DataView/Eventhistory.php

@@ -67,4 +67,12 @@ class EventHistory extends DataView
             'servicegroup', 'servicegroup_alias', 'servicegroup_name'
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSearchColumns()
+    {
+        return array('host', 'host_display_name', 'service', 'service_display_name', 'type');
+    }
 }