Add viator-collector plugin (Hop On Hop Off front-end reskin)

Consolidate the plugin into the TourWebsite repository (its separate
nested git repo has been removed). Includes the full new-design reskin:
scoped design stylesheet, SVG icon sprite, rebuilt listing/single/section
templates, and homepage hero/FAQ/testimonials shortcodes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J4hNL1PSHxXbu94SCenpKj

viator-collector/viator-collector.php

@@ -0,0 +1,29 @@
+<?php
+defined('ABSPATH') || exit;
+
+/**
+ * Plugin Name: Viator Collector
+ * Description: Import Viator tours using the Viator Partner API and display them with native WordPress post types, templates, and shortcodes.
+ * Version: 1.8.0
+ * Author: Amir Bagheri
+ * License: GPL-2.0-or-later
+ * Text Domain: viator-collector
+ */
+
+define('VC_VERSION', '1.8.0');
+define('VC_PLUGIN_FILE', __FILE__);
+define('VC_PLUGIN_DIR', plugin_dir_path(__FILE__));
+define('VC_PLUGIN_URL', plugin_dir_url(__FILE__));
+define('VC_PLUGIN_BASENAME', plugin_basename(__FILE__));
+
+require_once VC_PLUGIN_DIR . 'includes/class-vc-plugin.php';
+
+register_activation_hook(__FILE__, array('VC_Plugin', 'activate'));
+register_deactivation_hook(__FILE__, array('VC_Plugin', 'deactivate'));
+
+add_action(
+	'plugins_loaded',
+	static function () {
+		VC_Plugin::instance()->init();
+	}
+);