1.5, added stuff, fixed stuff

- mod icon
- fixes for new vanilla clipping issues
- GenClosest optimization improving repairing, wardening, tending jobs
- caching for new ListerBuildings methods
- DynamicDrawManager single threading
- Type.GetFields caching
- StatParts analyzer category
- removed duplicate steam warning and optionally window
- added exception handling for debug menu, incidentworker, Graphic_Multi, InitializeComps, making all those now log what mod broke and not cause black screens or whatever

Source/PerformanceFish/GasDefOf.cs

@@ -15,7 +15,12 @@ public static class GasDefOf
 	public static GasDef
 		BlindSmoke,
 		ToxGas,
-		RotStink;
+		RotStink
+#if !V1_4
+		,
+		DeadLifeDust
+#endif
+		;
 
 	static GasDefOf() => DefOfHelper.EnsureInitializedInCtor(typeof(GasDefOf));
 }