Add trusted browser classes

- Added some tests

src/Security/TwoFactor/Model/TrustedBrowser.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Friendica\Security\TwoFactor\Model;
+
+use Friendica\BaseEntity;
+use Friendica\Util\DateTimeFormat;
+
+/**
+ * Class TrustedBrowser
+ *
+ *
+ * @property-read $cookie_hash
+ * @property-read $uid
+ * @property-read $user_agent
+ * @property-read $created
+ * @property-read $last_used
+ * @package Friendica\Model\TwoFactor
+ */
+class TrustedBrowser extends BaseEntity
+{
+	protected $cookie_hash;
+	protected $uid;
+	protected $user_agent;
+	protected $created;
+	protected $last_used;
+
+	/**
+	 * Please do not use this constructor directly, instead use one of the method of the TrustedBroser factory.
+	 *
+	 * @see \Friendica\Security\TwoFactor\Factory\TrustedBrowser
+	 *
+	 * @param string      $cookie_hash
+	 * @param int         $uid
+	 * @param string      $user_agent
+	 * @param string      $created
+	 * @param string|null $last_used
+	 */
+	public function __construct(string $cookie_hash, int $uid, string $user_agent, string $created, string $last_used = null)
+	{
+		$this->cookie_hash = $cookie_hash;
+		$this->uid = $uid;
+		$this->user_agent = $user_agent;
+		$this->created = $created;
+		$this->last_used = $last_used;
+	}
+
+	public function recordUse()
+	{
+		$this->last_used = DateTimeFormat::utcNow();
+	}
+}