Add copyrights

Author: ronangr1

etc/config.xml

@@ -1,4 +1,10 @@
 <?xml version="1.0"?>
+<!--
+/**
+ * Copyright © OpenGento, All rights reserved.
+ * See LICENSE bundled with this library for license details.
+ */
+-->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
     <default>

etc/email_templates.xml

@@ -1,4 +1,10 @@
 <?xml version="1.0"?>
+<!--
+/**
+ * Copyright © OpenGento, All rights reserved.
+ * See LICENSE bundled with this library for license details.
+ */
+-->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Email:etc/email_templates.xsd">
     <template id="login"

etc/frontend/di.xml

@@ -1,4 +1,10 @@
 <?xml version="1.0"?>
+<!--
+/**
+ * Copyright © OpenGento, All rights reserved.
+ * See LICENSE bundled with this library for license details.
+ */
+-->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
     <type name="Opengento\Hoodoor\Service\Customer\Login">