[ticket/12410] Add Template events search_results_post_ b/a

PHPBB3-12410
Merge pull request #2314 from PayBas/ticket/12410

[ticket/12410] Add Template events search_results_post_ b/a

* PayBas/ticket/12410:
  [ticket/12410] Add Template events search_results_post_ b/a
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12410] Add Template events search_results_post_ b/a