Feature: [calendar][docgen] controller and UI to generate a document from a calendar

src/Bundle/ChillCalendarBundle/Resources/views/CalendarDoc/pick_template.html.twig

@@ -0,0 +1,24 @@
+{% extends "@ChillPerson/AccompanyingCourse/layout.html.twig"  %}
+
+{% set activeRouteKey = 'chill_calendar_calendar_list' %}
+
+{% block title %}{{ 'chill_calendar.Add a document' |trans }}{% endblock title %}
+
+{% set user_id = null %}
+{% set accompanying_course_id = accompanyingCourse.id %}
+
+{% block js %}
+    {{ parent() }}
+    {{ encore_entry_script_tags('mod_docgen_picktemplate') }}
+{% endblock %}
+
+{% block css %}
+    {{ parent() }}
+    {{ encore_entry_link_tags('mod_docgen_picktemplate') }}
+{% endblock %}
+
+{% block content %}
+
+    <div data-docgen-template-picker="data-docgen-template-picker" data-entity-id="{{ calendar.id }}" data-entity-class="{{ 'Chill\\CalendarBundle\\Entity\\Calendar'|e('html_attr') }}"></div>
+
+{% endblock %}