feat: implement custom event dispatcher and listener system (#13)

Reviewed-on: #13
Co-authored-by: Ron Rise <ron@siteworxpro.com>
Co-committed-by: Ron Rise <ron@siteworxpro.com>

src/Annotations/Events/ListensFor.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Siteworxpro\App\Annotations\Events;
+
+use Attribute;
+
+#[Attribute(Attribute::TARGET_CLASS | Attribute::IS_REPEATABLE)]
+readonly class ListensFor
+{
+    public function __construct(public string $eventClass)
+    {
+    }
+}