add repairKit class

Java-Knight/src/main/java/org/project/item/consumables/repairKit.java

@@ -0,0 +1,21 @@
+package org.project.item.consumables;
+
+import org.project.entity.Entity;
+import org.project.entity.players.Player;
+
+public class repairKit extends Consumable{
+    public repairKit() {
+        super("Repair Kit",1);
+    }
+
+    @Override
+    public void use(Entity target) {
+        if (!hasCharges()) {
+            System.out.println("Repair Kit is not available");
+            return;
+        }
+        ((Player) (target)).getArmor().repair();
+        consume();
+        System.out.println("(" + getQuantity() + " charges remaining)");
+    }
+}