fix(doom): Adds RemGauntlet (#591)

- [X] Adds a `RemGauntlet` command.
- [X] Makes `GenGauntlet` remove before adding.
- [X] Organizes the Doom files.

Closes #586

Projects/UOContent/Engines/Doom/GauntletRegion.cs

@@ -0,0 +1,32 @@
+using Server.Regions;
+
+namespace Server.Engines.Doom
+{
+    public class GauntletRegion : BaseRegion
+    {
+        private GauntletSpawner m_Spawner;
+
+        public GauntletRegion(GauntletSpawner spawner, Map map)
+            : base(null, map, Find(spawner.Location, spawner.Map), spawner.RegionBounds)
+        {
+            m_Spawner = spawner;
+
+            GoLocation = spawner.Location;
+
+            Register();
+        }
+
+        public override void AlterLightLevel(Mobile m, ref int global, ref int personal)
+        {
+            global = 12;
+        }
+
+        public override void OnEnter(Mobile m)
+        {
+        }
+
+        public override void OnExit(Mobile m)
+        {
+        }
+    }
+}