Dummy second window

src/window.rs

@@ -1,19 +1,19 @@
 pub use about::AboutWindow;
-pub use character_data::CharacterDataWindow;
 use egui::{Context, ViewportBuilder, ViewportId};
 pub use game::GameWindow;
 pub use gdb::GdbServerWindow;
 pub use input::InputWindow;
+pub use vram::{BgMapWindow, CharacterDataWindow};
 use winit::event::KeyEvent;
 
 use crate::emulator::SimId;
 
 mod about;
-mod character_data;
 mod game;
 mod game_screen;
 mod gdb;
 mod input;
+mod vram;
 
 pub trait AppWindow {
     fn viewport_id(&self) -> ViewportId;