Added new config to set custom defaults for QR codes

module/Core/src/Options/QrCodeOptions.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shlinkio\Shlink\Core\Options;
+
+use Laminas\Stdlib\AbstractOptions;
+
+use const Shlinkio\Shlink\DEFAULT_QR_CODE_ERROR_CORRECTION;
+use const Shlinkio\Shlink\DEFAULT_QR_CODE_FORMAT;
+use const Shlinkio\Shlink\DEFAULT_QR_CODE_MARGIN;
+use const Shlinkio\Shlink\DEFAULT_QR_CODE_SIZE;
+
+class QrCodeOptions extends AbstractOptions
+{
+    private int $size = DEFAULT_QR_CODE_SIZE;
+    private int $margin = DEFAULT_QR_CODE_MARGIN;
+    private string $format = DEFAULT_QR_CODE_FORMAT;
+    private string $errorCorrection = DEFAULT_QR_CODE_ERROR_CORRECTION;
+
+    public function size(): int
+    {
+        return $this->size;
+    }
+
+    protected function setSize(int $size): void
+    {
+        $this->size = $size;
+    }
+
+    public function margin(): int
+    {
+        return $this->margin;
+    }
+
+    protected function setMargin(int $margin): void
+    {
+        $this->margin = $margin;
+    }
+
+    public function format(): string
+    {
+        return $this->format;
+    }
+
+    protected function setFormat(string $format): void
+    {
+        $this->format = $format;
+    }
+
+    public function errorCorrection(): string
+    {
+        return $this->errorCorrection;
+    }
+
+    protected function setErrorCorrection(string $errorCorrection): void
+    {
+        $this->errorCorrection = $errorCorrection;
+    }
+}