Move sculpin-old files to sculpin-old directory

sculpin-old/app/SculpinKernel.php

@@ -0,0 +1,21 @@
+<?php
+
+use Opdavies\Sculpin\Bundle\ContentGeneratorBundle\SculpinContentGeneratorBundle;
+use Opdavies\Sculpin\Bundle\GistEmbedBundle\SculpinGistEmbedBundle;
+use Opdavies\Sculpin\Bundle\TwigMarkdownBundle\SculpinTwigMarkdownBundle;
+use Sculpin\Bundle\SculpinBundle\HttpKernel\AbstractKernel;
+
+class SculpinKernel extends AbstractKernel
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function getAdditionalSculpinBundles(): array
+    {
+        return [
+            SculpinContentGeneratorBundle::class,
+            SculpinGistEmbedBundle::class,
+            SculpinTwigMarkdownBundle::class,
+        ];
+    }
+}