Add a link between accompanying period and user

It is now allowed to indicates who make/made the accompanying period.

This feature may be hidden by a specific configuration option. Default
to visible.

Resources/config/services/form.yml

@@ -0,0 +1,31 @@
+services:
+    chill.person.form.person_creation:
+        class: Chill\PersonBundle\Form\PersonType
+        arguments:
+            - "%chill_person.person_fields%"
+        tags:
+            - { name: form.type }
+    
+    chill.person.accompanying_period_closing_motive:
+        class: Chill\PersonBundle\Form\Type\ClosingMotiveType
+        arguments:
+            - "@chill.main.helper.translatable_string"
+        tags:
+            - { name: form.type, alias: closing_motive }
+            
+    Chill\PersonBundle\Form\AccompanyingPeriodType:
+        arguments:
+            $config: "%chill_person.accompanying_period_fields%"
+        tags:
+            - { name: form.type }
+
+    chill.person.form.type.pick_person:
+        class: Chill\PersonBundle\Form\Type\PickPersonType
+        arguments:
+            - "@chill.person.repository.person"
+            - "@security.token_storage"
+            - "@chill.main.security.authorization.helper"
+            - '@Symfony\Component\Routing\Generator\UrlGeneratorInterface'
+            - '@Symfony\Component\Translation\TranslatorInterface'
+        tags:
+            - { name: form.type }