[Template] posting_topic_title_prepend

Identifier: posting_topic_title_prepend
Prosilver Location (if applicable): posting_layout.html, between <h2 class="posting-title"> and <a href="

{U_VIEW_TOPIC}">
Subsilver Location (if applicable): posting_body.html, between <!-- IF TOPIC_TITLE --> and <a class="titles" href="{U_VIEW_TOPIC}

">
Explanation: Allows to add some information on the left of the topic title in the posting form

Recreation of previously lost ticket PHPBB-14019.