Optimize C++ compilation time

Source/Engine/Level/Prefabs/Prefab.Apply.cpp

@@ -6,6 +6,7 @@
 
 #include "Engine/Core/ObjectsRemovalService.h"
 #include "Engine/Core/Cache.h"
+#include "Engine/Core/Types/TimeSpan.h"
 #include "Engine/Scripting/Scripting.h"
 #include "Engine/Scripting/Script.h"
 #include "Engine/Serialization/Json.h"

Source/Engine/Level/Prefabs/Prefab.h

@@ -3,6 +3,7 @@
 #pragma once
 
 #include "Engine/Content/JsonAsset.h"
+#include "Engine/Core/Collections/Array.h"
 #include "Engine/Core/Collections/Dictionary.h"
 
 class Actor;
@@ -15,7 +16,6 @@ class SceneObject;
 API_CLASS(NoSpawn) class FLAXENGINE_API Prefab : public JsonAssetBase
 {
 DECLARE_ASSET_HEADER(Prefab);
-
 private:
 
     bool _isCreatingDefaultInstance;