feat: Moves gumps out of the core (#1916)

> [!Important]
> **Developer Note**
> This code change will **completely move gumps out of the core**


### Summary

- Adds `GetGumps()` convenience which exposes methods to Find/Close/Send multiple gumps. This helper is a performance improvement by eliminating the Dictionary<Player, List> lookup for gumps.

Projects/UOContent/Engines/Craft/Core/CraftGump.cs

@@ -24,6 +24,8 @@ public class CraftGump : DynamicGump
     private readonly BaseTool _tool;
     private readonly TextDefinition _notice;
 
+    public override bool Singleton => true;
+
     public CraftGump(
         Mobile from, CraftSystem craftSystem, BaseTool tool, TextDefinition notice, CraftPage page = CraftPage.None
     ) : base(40, 40)
@@ -419,7 +421,6 @@ public class CraftGump : DynamicGump
 
     public override void SendTo(NetState ns)
     {
-        _from.CloseGump<CraftGump>();
         _from.CloseGump<CraftGumpItem>();
 
         base.SendTo(ns);

Projects/UOContent/Engines/Craft/Core/CraftGumpItem.cs

@@ -27,6 +27,8 @@ namespace Server.Engines.Craft
 
         private bool m_ShowExceptionalChance;
 
+        public override bool Singleton => true;
+
         public CraftGumpItem(Mobile from, CraftSystem craftSystem, CraftItem craftItem, BaseTool tool) : base(40, 40)
         {
             m_From = from;
@@ -34,9 +36,6 @@ namespace Server.Engines.Craft
             m_CraftItem = craftItem;
             m_Tool = tool;
 
-            from.CloseGump<CraftGump>();
-            from.CloseGump<CraftGumpItem>();
-
             AddPage(0);
             AddBackground(0, 0, 530, 417, 5054);
             AddImageTiled(10, 10, 510, 22, 2624);

Projects/UOContent/Engines/Craft/Core/CraftItem.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using Server.Commands;
 using Server.Factions;
+using Server.Gumps;
 using Server.Items;
 using Server.Logging;
 using Server.Mobiles;

Projects/UOContent/Engines/Craft/Core/Enhance.cs

@@ -1,4 +1,5 @@
 using System;
+using Server.Gumps;
 using Server.Items;
 using Server.Targeting;
 

Projects/UOContent/Engines/Craft/Core/QueryMakersMarkGump.cs

@@ -14,13 +14,13 @@ namespace Server.Engines.Craft
         private readonly BaseTool m_Tool;
         private readonly Type m_TypeRes;
 
+        public override bool Singleton => true;
+
         public QueryMakersMarkGump(
             int quality, Mobile from, CraftItem craftItem, CraftSystem craftSystem, Type typeRes,
             BaseTool tool
         ) : base(100, 200)
         {
-            from.CloseGump<QueryMakersMarkGump>();
-
             m_Quality = quality;
             m_From = from;
             m_CraftItem = craftItem;

Projects/UOContent/Engines/Craft/Core/Repair.cs

@@ -1,4 +1,5 @@
 using System;
+using Server.Gumps;
 using Server.Items;
 using Server.Mobiles;
 using Server.Targeting;

Projects/UOContent/Engines/Craft/Core/Resmelt.cs

@@ -1,4 +1,5 @@
 using Server.Ethics;
+using Server.Gumps;
 using Server.Items;
 using Server.Targeting;
 

Projects/UOContent/Engines/Craft/DefTinkering.cs

@@ -1,5 +1,6 @@
 using System;
 using Server.Factions;
+using Server.Gumps;
 using Server.Items;
 using Server.Targeting;