replace agent clone with explicit move

src/lib.rs

@@ -554,7 +554,7 @@ pub fn run(config: Config, rle: Option<String>) -> Result<()> {
 
                 println!("gen {} score {}", pop.gen, pop.life[0].score);
                 if pop.life[0].goal == Solution::Win {
-                    return Ok(Some(pop.life[0].clone()));
+                    return Ok(Some(pop.life.remove(0)));
                 }
             }