Better virtual file system, keyboard through MMIO&VirtIO

crates/os-std/src/io.rs

@@ -0,0 +1 @@
+pub use io::SeekFrom;

crates/os-std/src/lib.rs

@@ -2,6 +2,7 @@
 
 extern crate alloc;
 
+pub mod io;
 pub mod prelude;
 
 pub use shared::fs;