entity workflow: handle sending an access key by email

src/Bundle/ChillMainBundle/config/services.yaml

@@ -38,6 +38,17 @@ services:
         arguments:
             $handlers: !tagged_iterator chill_main.workflow_handler
 
+    Chill\MainBundle\Workflow\EventSubscriber\SendAccessKeyEventSubscriber:
+        autoconfigure: true
+        autowire: true
+        tags:
+            -
+                name: 'doctrine.orm.entity_listener'
+                event: 'postPersist'
+                entity: 'Chill\MainBundle\Entity\Workflow\EntityWorkflowStep'
+                # set the 'lazy' option to TRUE to only instantiate listeners when they are used
+                lazy: true
+
     # other stuffes
 
     chill.main.helper.translatable_string: