Created new action to get default visit stats

module/Core/src/Visit/Model/VisitsStats.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shlinkio\Shlink\Core\Visit\Model;
+
+use JsonSerializable;
+
+final class VisitsStats implements JsonSerializable
+{
+    private int $visitsCount;
+
+    public function __construct(int $visitsCount)
+    {
+        $this->visitsCount = $visitsCount;
+    }
+
+    public function jsonSerialize(): array
+    {
+        return [
+            'visitsCount' => $this->visitsCount,
+        ];
+    }
+}