Refactor VK layer handling and add logging improvements

Refactored VK layer handling by changing return type of `use_layers` to `Vec<CString>`, adjusting subsequent usage of layers. Implemented `Display` for `VkPhysicalDevice` for better logging. Enhanced application initialization with detailed window attributes. Transitioned to using `log::info` for consistent logging.

src/main.rs

@@ -1,4 +1,5 @@
 use winit::event_loop::EventLoop;
+use winit::window::Window;
 
 mod display;
 mod vulkan;
@@ -7,8 +8,16 @@ fn main() {
     env_logger::init();
 
     let event_loop = EventLoop::new().unwrap();
+
+    let window_attributes = Window::default_attributes()
+        .with_title("Rust ASH Test")
+        .with_visible(true)
+        .with_inner_size(winit::dpi::LogicalSize::new(
+            f64::from(800),
+            f64::from(600),
+        ));
     
-    let mut app = display::App::default();
+    let mut app = display::App::new(window_attributes);
 
     let _ = event_loop.run_app(&mut app);
 }