Fix crit calculation and bonus attack/def/luck

Zennysoft.Game.Ma/src/items/accessory/Accessory.cs

@@ -57,6 +57,18 @@ public partial class Accessory : EquipableItem
   [Save("accessory_bonus_luck")]
   private int _bonusLuck { get; set; } = 0;
 
+  public void IncreaseAttack(int bonus) => _bonusDamage += bonus;
+
+  public void SetAttack(int newBonus) => _bonusDamage = newBonus;
+
+  public void IncreaseDefense(int bonus) => _bonusDefense += bonus;
+
+  public void SetDefense(int newBonus) => _bonusDefense = newBonus;
+
+  public void IncreaseLuck(int bonus) => _bonusLuck += bonus;
+
+  public void SetLuck(int newBonus) => _bonusLuck = newBonus;
+
   [Export]
   [Save("accessory_stats")]
   public AccessoryStats Stats { get; set; } = new AccessoryStats();