Add license directory and update remaining license format in coin

Task-number: QTBUG-108364
Change-Id: I1250a46d60d5b4e85258b93f8f6f6fc4631b3a70
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 6757a4c399)

configure.bat

@@ -1,31 +1,6 @@
 @echo off
-:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-::
 :: Copyright (C) 2020 The Qt Company Ltd.
-:: Contact: http://www.qt.io/licensing/
-::
-:: This file is part of the tools applications of the Qt Toolkit.
-::
-:: $QT_BEGIN_LICENSE:GPL-EXCEPT$
-:: Commercial License Usage
-:: Licensees holding valid commercial Qt licenses may use this file in
-:: accordance with the commercial license agreement provided with the
-:: Software or, alternatively, in accordance with the terms contained in
-:: a written agreement between you and The Qt Company. For licensing terms
-:: and conditions see https://www.qt.io/terms-conditions. For further
-:: information use the contact form at https://www.qt.io/contact-us.
-::
-:: GNU General Public License Usage
-:: Alternatively, this file may be used under the terms of the GNU
-:: General Public License version 3 as published by the Free Software
-:: Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-:: included in the packaging of this file. Please review the following
-:: information to ensure the GNU General Public License requirements will
-:: be met: https://www.gnu.org/licenses/gpl-3.0.html.
-::
-:: $QT_END_LICENSE$
-::
-:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+:: SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
 set "srcpath=%~dp0"
 set "configure=%srcpath%qtbase\configure.bat"