add missing files

launcher/launcheruilayer.h

@@ -0,0 +1,28 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include "uilayer.h"
+#include "launcher/scenery_list.h"
+#include "launcher/keymapper.h"
+#include "launcher/mainmenu.h"
+#include "launcher/vehicle_picker.h"
+
+class launcher_ui : public ui_layer {
+public:
+	launcher_ui();
+	bool on_key(const int Key, const int Action) override;
+
+private:
+	ui::scenerylist_panel m_scenerylist_panel;
+	ui::keymapper_panel m_keymapper_panel;
+	ui::mainmenu_panel m_mainmenu_panel;
+	ui::vehiclepicker_panel m_vehiclepicker_panel;
+};