add and display events in history timeline

Resources/config/services/timeline.yml

@@ -0,0 +1,9 @@
+services:
+    chill.event.timeline:
+        class: Chill\EventBundle\Timeline\TimelineEventProvider
+        arguments:
+            - '@doctrine.orm.entity_manager'
+            - '@chill.main.security.authorization.helper'
+            - '@security.token_storage'
+        tags:
+            - { name: chill.timeline, context: 'person' }