Make create info serializable

src/guihandler/guihandler.rs

@@ -1,6 +1,7 @@
 use crate::prelude::*;
 use anyhow::Result;
 use assetpath::AssetPath;
+use serde::{Deserialize, Serialize};
 use utilities::prelude::*;
 use vulkan_rs::prelude::*;
 
@@ -21,7 +22,7 @@ use std::{ops::Deref, sync::Weak};
 
 use paste::paste;
 
-#[derive(Clone, Default, Debug)]
+#[derive(Deserialize, Serialize, Clone, Default, Debug)]
 pub struct GuiHandlerCreateInfo {
     // default button textures
     pub menu_button: AssetPath,