Lots of new optimizations utilizing prepatcher

To start, this mod now requires Prepatcher and Fishery.
New optimizations include: gene ticking improvements, world object improvements, hediff optimizations, world pawn gc optimizations, better mothballing, dds support, ContentFinder caching, additions and changes to reflection caching, as well as various other additions. Multiplayer support has been improved too, but should be considered highly experimental. The WorkGiver_DoBill bug is fixed in this build. Multiple patches aiming to improve RimWorld's load time have been added too.

Source/PerformanceFish/Pools/PooledStringBuilder.cs

@@ -0,0 +1,62 @@
+// Copyright (c) 2023 bradson
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+using System.Security;
+using System.Text;
+using JetBrains.Annotations;
+
+namespace PerformanceFish.Pools;
+
+public struct PooledStringBuilder : IDisposable
+{
+	private FishPoolable _fishPoolable;
+	
+	public StringBuilder Builder => _fishPoolable.Builder;
+
+	public StringBuilder Append(string? value) => Builder.Append(value);
+	public StringBuilder Append(char value) => Builder.Append(value);
+	public StringBuilder Append(char[] value) => Builder.Append(value);
+	public StringBuilder Append(PooledStringBuilderHandler value) => value.AppendToStringBuilder(Builder);
+
+	public StringBuilder AppendLine(string? value) => Builder.AppendLine(value);
+	
+	public StringBuilder Insert(int index, string? value) => Builder.Insert(index, value);
+	public StringBuilder Insert(int index, char value) => Builder.Insert(index, value);
+	
+	public StringBuilder Remove(int startIndex, int length) => Builder.Remove(startIndex, length);
+
+	public void Clear() => Builder.Clear();
+
+	public override string ToString() => Builder.ToString();
+	
+	[SecuritySafeCritical]
+	public PooledStringBuilder() => _fishPoolable = FishPool<FishPoolable>.Get();
+
+	public PooledStringBuilder(int minimumSize) : this()
+	{
+		if (_fishPoolable.Builder.Capacity < minimumSize)
+			_fishPoolable.Builder.Capacity = minimumSize;
+	}
+
+	[SecuritySafeCritical]
+	public void Dispose()
+	{
+		if (_fishPoolable.Builder == null!)
+			return;
+
+		FishPool<FishPoolable>.Return(_fishPoolable);
+		_fishPoolable.Builder = null!;
+	}
+
+	private struct FishPoolable : IFishPoolable
+	{
+		public StringBuilder Builder = new();
+		
+		public void Reset() => Builder.Clear();
+		
+		[UsedImplicitly]
+		public FishPoolable() {}
+	}
+}