Add VkInstance

src/main.rs

@@ -1,3 +1,12 @@
+use winit::event_loop::EventLoop;
+
+mod display;
+mod vulkan;
+
 fn main() {
-    println!("Hello, world!");
+    let event_loop = EventLoop::new().unwrap();
+    
+    let mut app = display::App::default();
+
+    let _ = event_loop.run_app(&mut app);
 }