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)

include/Nazara/Core/EnttWorld.hpp

@@ -0,0 +1,49 @@
+// 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
+
+#pragma once
+
+#ifndef NAZARA_CORE_ENTTWORLD_HPP
+#define NAZARA_CORE_ENTTWORLD_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Core/ApplicationComponent.hpp>
+#include <Nazara/Core/EntityWorld.hpp>
+#include <Nazara/Core/EnttSystemGraph.hpp>
+
+namespace Nz
+{
+	class NAZARA_CORE_API EnttWorld : public EntityWorld
+	{
+		public:
+			EnttWorld();
+			EnttWorld(const EnttWorld&) = default;
+			EnttWorld(EnttWorld&&) = default;
+			~EnttWorld() = default;
+
+			template<typename T, typename... Args> T& AddSystem(Args&&... args);
+
+			entt::handle CreateEntity();
+
+			entt::registry& GetRegistry();
+			const entt::registry& GetRegistry() const;
+			template<typename T> T& GetSystem() const;
+
+			void Update(Time elapsedTime) override;
+
+			operator entt::registry&();
+			operator const entt::registry&() const;
+
+			EnttWorld& operator=(const EnttWorld&) = delete;
+			EnttWorld& operator=(EnttWorld&&) = delete;
+
+		private:
+			entt::registry m_registry;
+			EnttSystemGraph m_systemGraph;
+	};
+}
+
+#include <Nazara/Core/EnttWorld.inl>
+
+#endif // NAZARA_CORE_ENTTWORLD_HPP