[ticket/14126] Add viewtopic_topic_title_after template event

Add content directly after the topic title link on the View topic screen
(outside of the h2 HTML tag).

PHPBB3-14126

phpBB/styles/subsilver2/template/viewtopic_body.html

@@ -16,6 +16,7 @@
 
 <div id="pageheader">
 	<h2><!-- EVENT viewtopic_topic_title_prepend --><a class="titles" href="{U_VIEW_TOPIC}">{TOPIC_TITLE}</a><!-- EVENT viewtopic_topic_title_append --></h2>
+	<!-- EVENT viewtopic_topic_title_after -->
 
 <!-- IF MODERATORS -->
 	<p class="moderators"><!-- IF S_SINGLE_MODERATOR -->{L_MODERATOR}<!-- ELSE -->{L_MODERATORS}<!-- ENDIF -->{L_COLON} {MODERATORS}</p>