Add logs of physical devices

src/vulkan/vk_instance.rs

@@ -4,6 +4,7 @@ use winit::raw_window_handle::{HasDisplayHandle};
 use crate::vulkan::VkPhysicalDevice;
 
 pub struct VkInstance {
+    entry: Entry,
     handle: Instance,
 }
 
@@ -57,6 +58,7 @@ impl VkInstance {
         };
 
         Self {
+            entry,
             handle: instance
         }
     }