fix: Codegens fillable containers (#862)

- [X] Fillable containers now relock/retrap after respawn.
- [X] Optimized the lookup and serialization.

Projects/UOContent/Items/Containers/Fillable Containers/FillableEntry.cs

@@ -0,0 +1,102 @@
+using System;
+
+namespace Server.Items;
+
+public class FillableEntry
+{
+    protected Type[] _types;
+    protected int _weight;
+
+    public FillableEntry(Type type) : this(1, new[] { type })
+    {
+    }
+
+    public FillableEntry(int weight, Type type) : this(weight, new[] { type })
+    {
+    }
+
+    public FillableEntry(Type[] types) : this(1, types)
+    {
+    }
+
+    public FillableEntry(int weight, Type[] types)
+    {
+        _weight = weight;
+        _types = types;
+    }
+
+    public FillableEntry(int weight, Type[] types, int offset, int count)
+    {
+        _weight = weight;
+        _types = new Type[count];
+        Array.Copy(types, offset, _types, 0, count);
+    }
+
+    public Type[] Types => _types;
+    public int Weight => _weight;
+
+    public virtual Item Construct()
+    {
+        var item = Loot.Construct(_types);
+
+        if (item is Key key)
+        {
+            key.ItemID = Utility.RandomList(
+                (int)KeyType.Copper,
+                (int)KeyType.Gold,
+                (int)KeyType.Iron,
+                (int)KeyType.Rusty
+            );
+        }
+        else if (item is Arrow or Bolt)
+        {
+            item.Amount = Utility.RandomMinMax(2, 6);
+        }
+        else if (item is Bandage or Lockpick)
+        {
+            item.Amount = Utility.RandomMinMax(1, 3);
+        }
+
+        return item;
+    }
+}
+
+public class FillableBvrge : FillableEntry
+{
+    public FillableBvrge(Type type, BeverageType content) : this(1, type, content)
+    {
+    }
+
+    public FillableBvrge(int weight, Type type, BeverageType content) : base(weight, type) =>
+        Content = content;
+
+    public BeverageType Content { get; }
+
+    public override Item Construct()
+    {
+        Item item;
+
+        var index = Utility.Random(_types.Length);
+
+        if (_types[index] == typeof(BeverageBottle))
+        {
+            item = new BeverageBottle(Content);
+        }
+        else if (_types[index] == typeof(Jug))
+        {
+            item = new Jug(Content);
+        }
+        else
+        {
+            item = base.Construct();
+
+            if (item is BaseBeverage bev)
+            {
+                bev.Content = Content;
+                bev.Quantity = bev.MaxQuantity;
+            }
+        }
+
+        return item;
+    }
+}