Refactor qmake SUBDIRS structure

The big swift.pro is refactored by the correct usage of SUBDIRS
template. The following additional changes are made:
- Removed '_' from all targets and folder names
- Aligned parent folder and target name

refs #461

src/plugins/simulator/xplaneconfig/simulatorxplaneconfig.h

@@ -0,0 +1,58 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKSIMPLUGIN_SIMULATOR_XPLANE_CONFIG_H
+#define BLACKSIMPLUGIN_SIMULATOR_XPLANE_CONFIG_H
+
+#include "blackgui/pluginconfig.h"
+#include "blackcore/settingscache.h"
+
+namespace BlackSimPlugin
+{
+    namespace XPlane
+    {
+
+        /*!
+         * Setting for XBus.
+         */
+        struct XBusServer : public BlackCore::CSettingTrait<QString>
+        {
+            //! \copydoc BlackCore::CSetting::key
+            static const char *key() { return "xbus/server"; }
+
+            //! \copydoc BlackCore::CSetting::defaultValue
+            static QString defaultValue() { return QStringLiteral("session"); }
+        };
+
+        /*!
+         * Config plugin for the X-Plane plugin.
+         */
+        class CSimulatorXPlaneConfig : public QObject, public BlackGui::IPluginConfig
+        {
+            Q_OBJECT
+            Q_PLUGIN_METADATA(IID "org.swift-project.blackgui.pluginconfiginterface" FILE "simulatorxplaneconfig.json")
+            Q_INTERFACES(BlackGui::IPluginConfig)
+
+        public:
+            //! Ctor
+            CSimulatorXPlaneConfig(QObject *parent = nullptr);
+
+            //! Dtor
+            virtual ~CSimulatorXPlaneConfig() {}
+
+            //! \copydoc BlackGui::IPluginConfig::createConfigWindow()
+            BlackGui::CPluginConfigWindow *createConfigWindow(QWidget *parent) override;
+
+        };
+    }
+}
+
+#endif // guard