Big fix of inventory system, add accessory item type

src/items/InventoryItem.cs

@@ -2,14 +2,11 @@
 using Chickensoft.GodotNodeInterfaces;
 using Chickensoft.Introspection;
 using Godot;
-using System.Linq;
 
 namespace GameJamDungeon
 {
   public interface IInventoryItem : INode3D
   {
-    public abstract InventoryItemInfo InventoryInfo { get; set; }
-
     public IGameRepo GameRepo { get; }
   }
 
@@ -17,10 +14,9 @@ namespace GameJamDungeon
   public abstract partial class InventoryItem : Node3D, IInventoryItem
   {
     public override void _Notification(int what) => this.Notify(what);
-
     [Dependency] public IGameRepo GameRepo => this.DependOn<IGameRepo>();
 
-    public abstract InventoryItemInfo InventoryInfo { get; set; }
+    internal abstract InventoryItemInfo Info { get; set; }
 
     [Node] public Area3D Pickup { get; set; } = default!;
   }