initial COmmit: Add KB Antora Importer plugin files

kb-antora-importer/includes/Settings.php

@@ -0,0 +1,24 @@
+<?php
+declare(strict_types=1);
+
+namespace KbAntoraImporter;
+
+final class Settings
+{
+    public static function defaults(): array
+    {
+        return [
+            'gitlab_base_url' => '',
+            'gitlab_token' => '',
+            'gitlab_group' => 'knowledgebase',
+            'branch_pattern' => '^v.*',
+            'docs_base_slug' => 'docs',
+            'renderer_mode' => 'php',
+            'asciidoctor_path' => 'asciidoctor',
+            'image_lightbox' => '1',
+            'public_docs' => '0',
+            'cron_interval' => 'disabled',
+            'allow_svg' => '0',
+        ];
+    }
+}