Make Dumux Reuse compliant
we could add SPDX identifiers which might look like this
// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
//
// SPDX-FileCopyrightText: Copyright © DuMux project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
/*****************************************************************************
* See the file COPYING for full copying permissions. *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version.
...
The information also has to be added to all non-C++ files. In particular images and other artifacts should get licenses which can be specified in an auxiliary file with name the-file.extension.license
with content like
// SPDX-FileCopyrightText: Copyright © DuMux project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
Edited by Timo Koch