Pass sessions into the schedule partial

source/index.html.twig

@@ -3,7 +3,7 @@ layout: default
 twitter:
     url: https://twitter.com/drupalcampbris
 update_text: Early bird tickets are now available!
-use: [speakers]
+use: [sessions, speakers]
 ---
 {% block content %}
   <main class="tw-bg-balloon tw-bg-center tw-bg-cover tw-flex tw-flex-col tw-flex-1">
@@ -45,6 +45,7 @@ use: [speakers]
   } %}
 
   {% include 'schedule' with {
+    sessions: data.sessions,
     slots: site.schedule.slots,
   } %}
 {% endblock %}

src/Schedule/services.yml

@@ -0,0 +1,4 @@
+services:
+    App\Schedule\TwigExtension\ScheduleExtension:
+        tags:
+            - { name: twig.extension }