[Fixes #42] Product Variant search enabled

Author: tareqtms

lib/ProductVariant.php

@@ -26,6 +26,11 @@ class ProductVariant extends ShopifyResource
      */
     protected $resourceKey = 'variant';
 
+    /**
+     * @inheritDoc
+     */
+    public $searchEnabled = true;
+
     /**
      * @inheritDoc
      */