feat: implement roll for Die

01.workspace/oxidice_lib/src/imp/die_roll.rs

@@ -0,0 +1,8 @@
+use crate::*;
+
+impl Die {
+    pub fn roll(&self) -> u16 {
+        let mut rng = rand::rng();
+        rng.random_range(1..=self.sides)
+    }
+}

01.workspace/oxidice_lib/src/imp/mod.rs

@@ -1,2 +1,3 @@
 pub mod die_new;
+pub mod die_roll;
 pub mod handful_grab;

01.workspace/oxidice_lib/src/lib.rs

@@ -1,3 +1,4 @@
+use rand::*;
 use std::*;
 
 mod fun;