Add context for household member editor form:

* add context for accompanying period, if indicated in a query
parameter;
* expand automatically household suggestion, if indicated in a query
parameter

src/Bundle/ChillPersonBundle/Resources/views/AccompanyingCourse/index.html.twig

@@ -39,12 +39,15 @@
             <ul>
               {% for p in withoutHousehold %}
               <li>
-                <input type="checkbox" name="persons[]" value="{{ p.id }}" />
+                <input type="checkbox" name="persons[]" value="{{ p.id }}" checked />
                 {{ p|chill_entity_render_box }}
               </li>
               {% endfor %}
             </ul>
 
+            <input type="hidden" name="expand_suggestions" value="true" />
+            <input type="hidden" name="accompanying_period_id", value="{{ accompanyingCourse.id }}" />
+
             <ul class="record_actions">
               <li>
                 <button type="submit" class="sc-button bt-edit">