Windows: implement with_resizable (#540) (#541)

* Windows: implement with_resizable (#540)

* Fixed typo

examples/no_resize.rs

@@ -0,0 +1,24 @@
+extern crate winit;
+
+fn main() {
+    let mut events_loop = winit::EventsLoop::new();
+
+    let _window = winit::WindowBuilder::new()
+        .with_title("A non-resizable window!")
+        .with_dimensions(200, 200)
+        .with_resizable(false)
+        .build(&events_loop)
+        .unwrap();
+
+    events_loop.run_forever(|event| {
+        println!("{:?}", event);
+
+        match event {
+            winit::Event::WindowEvent {
+                event: winit::WindowEvent::CloseRequested,
+                ..
+            } => winit::ControlFlow::Break,
+            _ => winit::ControlFlow::Continue,
+        }
+    });
+}