Reorganize source files into logical subdirectories

Co-authored-by: Hirek193 <23196899+Hirek193@users.noreply.github.com>

application/scenarioloadermode.h

@@ -0,0 +1,39 @@
+/*
+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 "applicationmode.h"
+#include "simulation.h"
+
+class scenarioloader_mode : public application_mode {
+	std::shared_ptr<simulation::deserializer_state> state;
+	std::chrono::system_clock::time_point timestart;
+
+public:
+// constructors
+    scenarioloader_mode();
+// methods
+    // initializes internal data structures of the mode. returns: true on success, false otherwise
+    bool init() override;
+    // mode-specific update of simulation data. returns: false on error, true otherwise
+    bool update() override;
+    // maintenance method, called when the mode is activated
+    void enter() override;
+    // maintenance method, called when the mode is deactivated
+    void exit() override;
+    // input handlers
+    void on_key( int const Key, int const Scancode, int const Action, int const Mods ) override { ; }
+    void on_cursor_pos( double const Horizontal, double const Vertical ) override { ; }
+    void on_mouse_button( int const Button, int const Action, int const Mods ) override { ; }
+	void on_scroll( double const Xoffset, double const Yoffset ) override { ; }
+	void on_window_resize( int w, int h ) override { ; }
+    void on_event_poll() override { ; }
+    bool is_command_processor() const override;
+};