Import de firefighterboard

src/main/java/model/FirefighterBoard.java

 package model;
 
-import util.Position;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.Set;
 
-import java.util.*;
+import util.Position;
+import util.TargetStrategy;
 
 
 public class FirefighterBoard implements Board<List<ModelElement>> {