created structs with implementation of Tuple that performs the same operations as the tuple lib. Much easier to use

structs/src/lib.rs

@@ -292,6 +292,6 @@ mod tests {
          let a = Tuple::new(1.0, -2.0, 3.0, -4.0);
          let result = Tuple::new(0.5, -1.0, 1.5, -2.0);
  
-         assert_eq!(result, a / 2.0);
+         assert_eq!(result, a /2.0);
      }
 }