bring back the old phpmailer with some minor updates

modules/phpmailer/views/admin_phpmailer.html.php

@@ -0,0 +1,8 @@
+<?php defined("SYSPATH") or die("No direct script access.") ?>
+<div id="g-php-mailer-admin">
+
+<?= t('To use this module you will need to ensure composer is installed then run "composer install" from the gallery3 directory.') ?>
+
+  <h2> <?= t("PHPMailer Settings") ?> </h2>
+  <?= $phpmailer_form ?>
+</div>