twig person/thirdparty renderbox: add a customArea option

with 2 areas to begin:
* before the label
* after the label

src/Bundle/ChillPersonBundle/Resources/views/Entity/person.html.twig

@@ -16,6 +16,10 @@
         'replace'   Twig\Markup,
         'after'     Twig\Markup
     ]
+    * customArea [
+        'beforeLabel'   Twig\Markup,
+        'afterLabel'    Twig\Markup,
+    ]
 #}
 
 {% macro raw(person, options) %}
@@ -37,11 +41,22 @@
         <div class="denomination {{ 'h' ~ options['hLevel'] }}">
             {%- if options['addLink'] and is_granted('CHILL_PERSON_SEE', person) -%}
                 <a href="{{ chill_path_add_return_path('chill_person_view', { 'person_id': person.id }) }}">
-                    {{ _self.raw(person, options) }}
-                </a>
-            {%- else -%}
-                {{ _self.raw(person, options) }}
             {%- endif -%}
+
+                {% if options['customArea']['beforeLabel'] is defined %}
+                    {{ options['customArea']['beforeLabel'] }}
+                {% endif %}
+
+                {{ _self.raw(person, options) }}
+
+                {% if options['customArea']['afterLabel'] is defined %}
+                    {{ options['customArea']['afterLabel'] }}
+                {% endif %}
+
+            {%- if options['addLink'] and is_granted('CHILL_PERSON_SEE', person) -%}
+                </a>
+            {%- endif -%}
+
             {%- if options['addEntity'] -%}
                 <span class="badge rounded-pill bg-secondary">{{ 'Person'|trans }}</span>
             {%- endif -%}