Extract logic to send visits to Matomo to its own service

module/Core/src/Matomo/MatomoVisitSenderInterface.php

@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shlinkio\Shlink\Core\Matomo;
+
+use Shlinkio\Shlink\Core\Visit\Entity\Visit;
+
+interface MatomoVisitSenderInterface
+{
+    public function sendVisitToMatomo(Visit $visit, ?string $originalIpAddress = null): void;
+}