Modifications de .gitignore et refactorisation d'imports

.gitignore

@@ -33,3 +33,5 @@ fabric.properties
 
 
 .gradle/
+*.class
+bin/
\ No newline at end of file

src/main/java/util/TargetStrategy.java

-package model;
+package util;
 
-import util.Position;
-
-import java.util.*;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Queue;
+import java.util.Set;
 
 public class TargetStrategy {