Mainly more hauling optimizations, utilizing linked storage groups

This also adds an experimental, usually slower, threaded gas grid mode and implements a workaround for the whole mod and game failing to start when opening prepatcher's mod manager with unfortunate timing

Source/PerformanceFish/JobSystem/WorkGiver_DoBillOptimization.cs

@@ -172,7 +172,7 @@ public sealed class WorkGiver_DoBillPrepatches : ClassWithFishPrepatches
 			}
 		}
 
-		private static readonly WorkGiver_DoBillOptimization.ThingPositionComparer _insertAtCorrectPositionComparer
+		private static readonly ThingPositionComparer _insertAtCorrectPositionComparer
 			= new();
 
 		public static void ActualLoop(List<Thing> list, Region r, Pawn pawn, Predicate<Thing> baseValidator,
@@ -599,16 +599,6 @@ public sealed class WorkGiver_DoBillOptimization : ClassWithFishPatches
 		}
 	}
 
-	public sealed class ThingPositionComparer : IComparer<Thing>
-	{
-		public IntVec3 rootCell;
-
-		[MethodImpl(MethodImplOptions.AggressiveInlining)]
-		public int Compare(Thing x, Thing y)
-			=> (x.Position - rootCell).LengthHorizontalSquared.CompareTo(
-				(y.Position - rootCell).LengthHorizontalSquared);
-	}
-
 	public record struct RecipeIngredientCacheValue
 	{
 		public IngredientCacheList? thingDefs;