fix: Changes Map.Sector.Mobiles to link list & Fixes various related crash bugs (#1553)

### Summary

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

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

- [X] Fixed several locations where an NPC that was damaged would cause a server crash.
- [X] Removed an unnecessary allocation in guard fake calls (NPCs calling guards on you)
- [X] Fixes damage precision loss in Poison Strike Spell
- [X] BogThing no longer attempts to "search" for boglings to eat when it is at full health

Projects/UOContent/Spells/Necromancy/Exorcism.cs

@@ -1,4 +1,5 @@
 using System;
+using Server.Collections;
 using Server.Engines.CannedEvil;
 using Server.Engines.PartySystem;
 using Server.Factions;
@@ -94,14 +95,23 @@ namespace Server.Spells.Necromancy
 
                 if (map != null)
                 {
-                    // Surprisingly, no sparkle type effects
+                    // Cannot move a mobile while iterating mobiles in range, so use a queue
+                    using var queue = PooledRefQueue<Mobile>.Create();
                     foreach (var m in r.Spawn.GetMobilesInRange(Range))
                     {
                         if (IsValidTarget(m))
                         {
-                            m.Location = GetNearestShrine(m);
+                            queue.Enqueue(m);
                         }
                     }
+
+                    while (queue.Count > 0)
+                    {
+                        var m = queue.Dequeue();
+
+                        // Surprisingly, no sparkle type effects
+                        m.Location = GetNearestShrine(m);
+                    }
                 }
             }