Clean up the GUI some by moving the map_view out into its own file.

gui.hpp

@@ -6,25 +6,9 @@
 #include "camera.hpp"
 #include "fsm.hpp"
 #include "render.hpp"
-#include "panel.hpp"
-#include <ftxui/dom/canvas.hpp>
-
-using ftxui::Canvas;
+#include "map_view.hpp"
 
 namespace gui {
-  class MapViewUI : public Panel {
-    public:
-      Canvas $canvas;
-      GameLevel $level;
-
-      MapViewUI(GameLevel &level);
-      void create_render();
-      void resize_canvas();
-      void draw_map();
-      void update_level(GameLevel &level);
-  };
-
-
   enum class State {
     START,
     MOVING,