fix: Adds GetClients to map iterators (#1574)

### Summary

Eliminates `IPooledEnumerable<NetState>` and `eable.Free()` from `Map` for clients. This drastically simplifies code that iterates in range, for example:

```cs
foreach (var m in m.GetClientsInRange(5))
{
}
```
The code above no longer requires an eable and calling `Free()`.

Projects/UOContent/Engines/ConPVP/Games/BombingRun.cs

@@ -140,8 +140,7 @@ namespace Server.Engines.ConPVP
                 return;
             }
 
-            var eable = GetClientsInRange(0);
-            foreach (var ns in eable)
+            foreach (var ns in GetClientsAt())
             {
                 var m = ns.Mobile;
 
@@ -585,8 +584,7 @@ namespace Server.Engines.ConPVP
                     return;
                 }
 
-                var clients = Map.GetClientsInBounds(rect);
-                foreach (var ns in clients)
+                foreach (var ns in Map.GetClientsInBounds(rect))
                 {
                     var m = ns.Mobile;
 

Projects/UOContent/Engines/Doom/LeverPuzzle/LeverPuzzleController.cs

@@ -505,9 +505,7 @@ public partial class LeverPuzzleController : Item
     {
         Span<byte> buffer = stackalloc byte[OutgoingMessagePackets.GetMaxMessageLength(Msgs[index])].InitializePacket();
 
-        var eable = from.Map.GetClientsInRange(from.Location);
-
-        foreach (var state in eable)
+        foreach (var state in from.Map.GetClientsInRange(from.Location))
         {
             var length = OutgoingMessagePackets.CreateMessage(
                 buffer,

Projects/UOContent/Engines/Veteran Rewards/Character Statue Maker/CharacterStatue.cs

@@ -370,11 +370,9 @@ public partial class CharacterStatue : Mobile, IRewardItem
         }
 
         ProcessDelta();
-
-        var eable = Map.GetClientsInRange(Location);
         Span<byte> animPacket = stackalloc byte[CharacterStatuePackets.StatueAnimationPacketLength].InitializePacket();
 
-        foreach (var state in eable)
+        foreach (var state in Map.GetClientsInRange(Location))
         {
             state.Mobile.ProcessDelta();
             CharacterStatuePackets.CreateStatueAnimation(animPacket, Serial, 1, m_Animation, m_Frames);

Projects/UOContent/Items/Skill Items/Camping/Campfire.cs

@@ -129,9 +129,7 @@ public partial class Campfire : Item
             }
         }
 
-        var eable = GetClientsInRange(SecureRange);
-
-        foreach (var state in eable)
+        foreach (var state in GetClientsInRange(SecureRange))
         {
             if (state.Mobile is PlayerMobile pm && GetEntry(pm) == null)
             {

Projects/UOContent/Skills/Snooping.cs

@@ -68,9 +68,7 @@ public static class Snooping
                 {
                     var message = $"You notice {from.Name} attempting to peek into {root.Name}'s belongings.";
 
-                    var eable = map.GetClientsInRange(from.Location, 8);
-
-                    foreach (var ns in eable)
+                    foreach (var ns in map.GetClientsInRange(from.Location, 8))
                     {
                         if (ns.Mobile != from)
                         {