added calendar configuration event (#2698)

src/Event/CalendarConfigurationEvent.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Event;
+
+use Symfony\Contracts\EventDispatcher\Event;
+
+class CalendarConfigurationEvent extends Event
+{
+    /**
+     * @var array<string, string|int|bool|array>
+     */
+    private $configuration;
+
+    public function __construct(array $configuration)
+    {
+        $this->configuration = $configuration;
+    }
+
+    public function getConfiguration(): array
+    {
+        return $this->configuration;
+    }
+
+    public function setConfiguration(array $configuration)
+    {
+        foreach ($configuration as $key => $value) {
+            if (\array_key_exists($key, $this->configuration)) {
+                $this->configuration[$key] = $value;
+            }
+        }
+    }
+}