chore: initialize a standard lib project

01.workspace/oxidice_lib/src/lib.rs

@@ -1,14 +1,8 @@
-pub fn add(left: u64, right: u64) -> u64 {
+use std::*;
-    left + right
-}
 
-#[cfg(test)]
+mod fun;
-mod tests {
+mod imp;
-    use super::*;
+mod mcr;
-
+mod str;
-    #[test]
+mod trt;
-    fn it_works() {
+mod tst;
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
-}