Make key items (flower and key staff)

Implement fog door for unlockable doors

Zennysoft.Game.Ma/src/player/DummyPlayer.cs

@@ -29,6 +29,8 @@ public partial class DummyPlayer : CharacterBody3D, IPlayer
 
   ISigilComponent IPlayer.SigilComponent => throw new NotImplementedException();
 
+  public bool CanOpenDoors { get; set; }
+
   public event Action PlayerDied;
 
   public void Activate() => throw new NotImplementedException();