Introduce trait `CommandAuthor`

modules/monitoring/library/Monitoring/Command/Object/CommandAuthor.php

@@ -0,0 +1,38 @@
+<?php
+
+/* Icinga Web 2 | (c) 2020 Icinga GmbH | GPLv2+ */
+
+namespace Icinga\Module\Monitoring\Command\Object;
+
+trait CommandAuthor
+{
+    /**
+     * Author of the command
+     *
+     * @var string
+     */
+    protected $author;
+
+    /**
+     * Set the author
+     *
+     * @param   string $author
+     *
+     * @return  $this
+     */
+    public function setAuthor($author)
+    {
+        $this->author = (string) $author;
+        return $this;
+    }
+
+    /**
+     * Get the author
+     *
+     * @return string
+     */
+    public function getAuthor()
+    {
+        return $this->author;
+    }
+}