[export] add a first export and first filters

- nationality aggregator (work in progress: we have to set the feature
  'group by continent')
- gender filter
- nationality filter
- gender filter

Resources/config/services.yml

@@ -62,4 +62,25 @@ services:
             - "@chill.main.form.data_transformer.center_transformer"
         tags:
             - { name: form.type, alias: chill_personbundle_person_creation }
+            
+    chill.person.export.export_count_person:
+        class: Chill\PersonBundle\Export\Export\CountPerson
+        tags:
+            - { name: chill.export, alias: count_person }
+            
+    chill.person.export.filter_gender:
+        class: Chill\PersonBundle\Export\Filter\GenderFilter
+        tags:
+            - { name: chill.export_filter, alias: person_gender_filter }
+            
+                
+    chill.person.export.filter_nationality:
+        class: Chill\PersonBundle\Export\Filter\NationalityFilter
+        tags:
+            - { name: chill.export_filter, alias: person_nationality_filter }
+            
+    chill.person.export.aggregator_nationality:
+        class: Chill\PersonBundle\Export\Aggregator\NationalityAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: person_nationality_aggregator }