[shellprocess] Stub of a shell process module.

This is basically dummyprocess, except with an expanded configuration
interface so you can run 1 or more shell commands in the live
or target system with a suitable configuration file and instance
of shellprocess in settings.conf.

It can replace downstream modules that implement their own
process modules with a command, by an instance of shellprocess.

src/modules/shellprocess/ShellProcessJob.h

@@ -0,0 +1,54 @@
+/* === This file is part of Calamares - <https://github.com/calamares> ===
+ *
+ *   Copyright 2018, Adriaan de Groot <groot@kde.org>
+ *
+ *   Calamares 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.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SHELLPROCESSJOB_H
+#define SHELLPROCESSJOB_H
+
+#include <QObject>
+#include <QVariantMap>
+
+#include <CppJob.h>
+
+#include <utils/PluginFactory.h>
+
+#include <PluginDllMacro.h>
+
+class CommandList;
+
+class PLUGINDLLEXPORT ShellProcessJob : public Calamares::CppJob
+{
+    Q_OBJECT
+
+public:
+    explicit ShellProcessJob( QObject* parent = nullptr );
+    virtual ~ShellProcessJob() override;
+
+    QString prettyName() const override;
+
+    Calamares::JobResult exec() override;
+
+    void setConfigurationMap( const QVariantMap& configurationMap ) override;
+
+private:
+    CommandList *m_commands;
+    bool m_dontChroot;
+};
+
+CALAMARES_PLUGIN_FACTORY_DECLARATION( ShellProcessJobFactory )
+
+#endif // SHELLPROCESSJOB_H