add empik module

modules/empikmarketplace/upgrade/install-1.1.4.php

@@ -0,0 +1,22 @@
+<?php
+
+use Empik\Marketplace\Adapter\ConfigurationAdapter;
+use Empik\Marketplace\Cache\CacheClearer;
+
+if (!defined('_PS_VERSION_')) {
+    exit;
+}
+
+/**
+ * @param EmpikMarketplace $object
+ * @return bool
+ */
+function upgrade_module_1_1_4($object)
+{
+    (new CacheClearer($object))->clear();
+
+    $result = true;
+    $result &= Configuration::updateValue(ConfigurationAdapter::CONF_SKU_TYPE, 'REFERENCE');
+
+    return $result;
+}