Add winit event loop

src/main.rs

@@ -1,3 +1,9 @@
+use winit::event_loop::EventLoop;
+
 fn main() {
-    println!("Hello, world!");
+    let event_loop = EventLoop::new();
+
+    event_loop.run(move |event, _, _| {
+        println!("{:?}", event);
+    })
 }