Make key items (flower and key staff)

Implement fog door for unlockable doors

Zennysoft.Game.Ma.Implementation/Equipment/Augment.cs

@@ -201,4 +201,24 @@ public class RevivePlayerAugment : IAugmentType
     else
       _player.AutoRevive = false;
   }
+}
+
+public class KeyStaffAugment : IAugmentType
+{
+  private readonly IPlayer _player;
+
+  public KeyStaffAugment(IPlayer player)
+  {
+    _player = player;
+  }
+
+  public void Apply()
+  {
+    _player.CanOpenDoors = true;
+  }
+
+  public void Remove()
+  {
+    _player.CanOpenDoors &= false;
+  }
 }

Zennysoft.Game.Ma.Implementation/Equipment/Tags/JewelTags.cs

@@ -17,5 +17,6 @@ public enum JewelTags
   ReviveUserOnce,
   TelluricElement,
   IncreaseAtkDefLuck,
-  IncreaseLuck
+  IncreaseLuck,
+  KeyStaff
 }

Zennysoft.Game.Ma.Implementation/Player/IPlayer.cs

@@ -78,6 +78,8 @@ public interface IPlayer : IKillable, ICharacterBody3D
 
   public bool BriefImmunity { get; set; }
 
+  public bool CanOpenDoors { get; set; }
+
   public event Action PlayerDied;
   public delegate IBaseInventoryItem RerollItem(IBaseInventoryItem item);
 }