Rename scheduling to 'async_io', general cleanup

libk/src/lib.rs

@@ -1,5 +1,5 @@
 #![no_std]
-#![allow(async_fn_in_trait)]
+// #![allow(async_fn_in_trait)]
 #![warn(tail_expr_drop_order)]
 #![warn(
     clippy::correctness,
@@ -12,15 +12,11 @@
     rustdoc::missing_panics_doc
 )]
 
-// alloc
-// io : serial, framebuffer, ascii(?), keyboard
-// ?????
-// scheduling / tasks : async
-
 extern crate alloc;
 
 pub mod drivers;
 pub mod resources;
+pub mod threads;
 pub mod util;
 
 #[allow(unused)] // We aren't using much of this right now.