refactor(modules): extract castopod parts into a modules/ folder for a scalable HMVC structure

- create Admin, Analytics, Auth, Fediverse and Install modules in the root modules/ folder
- rename
ActivityPub to Fediverse

modules/Analytics/Entities/AnalyticsUnknownUserAgent.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Class AnalyticsUnknownUseragents Entity for AnalyticsUnknownUseragents
+ *
+ * @copyright  2020 Podlibre
+ * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
+ * @link       https://castopod.org/
+ */
+
+namespace Modules\Analytics\Entities;
+
+use CodeIgniter\Entity\Entity;
+
+/**
+ * @property int $id
+ * @property int $useragent
+ * @property int $hits
+ * @property Time $created_at
+ * @property Time $updated_at
+ */
+class AnalyticsUnknownUserAgent extends Entity
+{
+    /**
+     * @var string[]
+     */
+    protected $dates = ['created_at', 'updated_at'];
+
+    /**
+     * @var array<string, string>
+     */
+    protected $casts = [
+        'id' => 'integer',
+        'useragent' => 'integer',
+        'hits' => 'integer',
+    ];
+}