fix: Moves ContextMenu out of core, streamlines code, fixes bugs (#1873)

## Summary
- Removes allocation of a `List<ContextMenuEntry>` every time a context menu is created.
- Moves packet/context menu creation logic out of the core
- Fixes tame entry

## BREAKING CHANGE
> [!Important]
> **Developer Note**
> ```cs
> public virtual void GetContextMenuEntries(Mobile from, List<ContextMenuEntry> list)
> ```
> and similar functions changed to
> ```cs
> public virtual void GetContextMenuEntries(Mobile from, ref PooledRefList<ContextMenuEntry> list)
> ```

Projects/UOContent/Items/Addons/AddonComponent.cs

@@ -162,7 +162,7 @@ namespace Server.Items
 /*
         public override void GetProperties(IPropertyList list) => _addon?.GetProperties(list);
 
-        public override void GetContextMenuEntries(Mobile from, List<ContextMenuEntry> list) =>
+        public override void GetContextMenuEntries(Mobile from, ref PooledRefList<ContextMenuEntry> list) =>
             _addon?.GetContextMenuEntries(from, list);
 */
         public override void OnAfterDelete()