Rework EnTT integration

- Update EnTT to 3.11.1
- Moved EnTT wrapper to EnTTWorld, inheriting EntityWorld
- AppEntitySystemComponent can now handles multiple EntityWorld
- Headers relying on EnTT are now automatically included if NAZARA_ENTT is defined
- Renamed SystemGraph to EnttSystemGraph (as it depends on it for now)

src/Nazara/Core/Systems/SystemGraph.cpp

@@ -1,37 +0,0 @@
-// Copyright (C) 2023 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
-// This file is part of the "Nazara Engine - Core module"
-// For conditions of distribution and use, see copyright notice in Config.hpp
-
-#include <Nazara/Core/Systems/SystemGraph.hpp>
-#include <Nazara/Core/Debug.hpp>
-
-namespace Nz
-{
-	SystemGraph::NodeBase::~NodeBase() = default;
-
-	void SystemGraph::Update()
-	{
-		return Update(m_clock.Restart());
-	}
-
-	void SystemGraph::Update(Time elapsedTime)
-	{
-		if (!m_systemOrderUpdated)
-		{
-			m_orderedNodes.clear();
-			m_orderedNodes.reserve(m_nodes.size());
-			for (auto& nodePtr : m_nodes)
-				m_orderedNodes.emplace_back(nodePtr.get());
-
-			std::sort(m_orderedNodes.begin(), m_orderedNodes.end(), [](const NodeBase* a, const NodeBase* b)
-			{
-				return a->executionOrder < b->executionOrder;
-			});
-
-			m_systemOrderUpdated = true;
-		}
-
-		for (NodeBase* node : m_orderedNodes)
-			node->Update(elapsedTime);
-	}
-}