Add criterion benchmark

src/belt_finding/brute_force.rs

@@ -7,7 +7,7 @@ use crate::misc::Map;
 
 use super::{Direction, Position, COLORS};
 
-#[derive(Default)]
+#[derive(Default, Clone)]
 pub struct BruteforceField {
     pub blocked: bool,
     underground_vertical: bool,
@@ -53,6 +53,7 @@ impl PathField {
 
 static MAX_UNDERGROUND_LENGTH: u8 = 6;
 
+#[derive(Clone)]
 pub struct BruteforceBuilder {
     map: Map<BruteforceField>,
     path: Vec<[(Position, Direction); 2]>,
@@ -110,6 +111,7 @@ impl BruteforceBuilder {
     }
 }
 
+#[derive(Clone)]
 struct Problem {
     path: Vec<PathField>,
     end_pos: Position,
@@ -117,6 +119,7 @@ struct Problem {
     finished: bool,
 }
 
+#[derive(Clone)]
 pub struct Bruteforce {
     map: Map<BruteforceField>,
     problems: Vec<Problem>,