obfucated names and updated stdio printf

lib/README.md

@@ -0,0 +1,4 @@
+# Wyst stdlib
+
+## > [!NOTE]
+> any changes made here should be documented before pushed to master

lib/stdio.rs

@@ -1,6 +1,7 @@
 #[macro_export]
-macro_rules! printf {
+
+macro_rules! _0x7072696e7466 {
     ($($arg:tt)*) => {
-        println!($($arg)*);
+        print!($($arg)*);
     };
-}
+}