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/Items/Misc/HairDye.cs

@@ -17,7 +17,6 @@ public partial class HairDye : Item
     {
         if (from.InRange(GetWorldLocation(), 1))
         {
-            from.CloseGump<HairDyeGump>();
             from.SendGump(new HairDyeGump(this));
         }
         else
@@ -47,6 +46,8 @@ public class HairDyeGump : Gump
 
     private HairDye _hairDye;
 
+    public override bool Singleton => true;
+
     public HairDyeGump(HairDye dye) : base(50, 50)
     {
         _hairDye = dye;

Projects/UOContent/Items/Misc/PlayerBulletinBoards.cs

@@ -290,10 +290,10 @@ public class PlayerBBGump : Gump
     private BaseHouse _house;
     private int _page;
 
+    public override bool Singleton => true;
+
     public PlayerBBGump(Mobile from, BaseHouse house, BasePlayerBB board, int page) : base(50, 10)
     {
-        from.CloseGump<PlayerBBGump>();
-
         _page = page;
         _from = from;
         _house = house;

Projects/UOContent/Items/Misc/PromotionalToken.cs

@@ -46,7 +46,6 @@ public abstract partial class PromotionalToken : Item
         }
         else
         {
-            from.CloseGump<PromotionalTokenGump>();
             from.SendGump(new PromotionalTokenGump(this));
         }
     }
@@ -71,6 +70,8 @@ public abstract partial class PromotionalToken : Item
     {
         private readonly PromotionalToken m_Token;
 
+        public override bool Singleton => true;
+
         public PromotionalTokenGump(PromotionalToken token) : base(10, 10)
         {
             m_Token = token;

Projects/UOContent/Items/Misc/PublicMoongate.cs

@@ -84,7 +84,6 @@ public partial class PublicMoongate : Item
             return false;
         }
 
-        m.CloseGump<MoongateGump>();
         m.SendGump(new MoongateGump(m, this));
 
         if (!m.Hidden || m.AccessLevel == AccessLevel.Player)
@@ -323,6 +322,8 @@ public class MoongateGump : Gump
     private Mobile _mobile;
     private Item _moongate;
 
+    public override bool Singleton => true;
+
     public MoongateGump(Mobile mobile, Item moongate) : base(100, 100)
     {
         _mobile = mobile;

Projects/UOContent/Items/Misc/SpecialBeardDye.cs

@@ -21,7 +21,6 @@ public partial class SpecialBeardDye : Item
     {
         if (from.InRange(GetWorldLocation(), 1))
         {
-            from.CloseGump<SpecialBeardDyeGump>();
             from.SendGump(new SpecialBeardDyeGump(this));
         }
         else
@@ -47,6 +46,8 @@ public class SpecialBeardDyeGump : Gump
 
     private SpecialBeardDye _specialBeardDye;
 
+    public override bool Singleton => true;
+
     public SpecialBeardDyeGump(SpecialBeardDye dye) : base(0, 0)
     {
         _specialBeardDye = dye;

Projects/UOContent/Items/Misc/SpecialHairDye.cs

@@ -21,7 +21,6 @@ public partial class SpecialHairDye : Item
     {
         if (from.InRange(GetWorldLocation(), 1))
         {
-            from.CloseGump<SpecialHairDyeGump>();
             from.SendGump(new SpecialHairDyeGump(this));
         }
         else
@@ -47,6 +46,8 @@ public class SpecialHairDyeGump : Gump
 
     private SpecialHairDye _specialHairDye;
 
+    public override bool Singleton => true;
+
     public SpecialHairDyeGump(SpecialHairDye dye) : base(0, 0)
     {
         _specialHairDye = dye;

Projects/UOContent/Items/Misc/WindChimes.cs

@@ -1,4 +1,5 @@
 using ModernUO.Serialization;
+using Server.Gumps;
 using Server.Multis;
 
 namespace Server.Items;