Core: Rework VirtualDirectory to allow custom directory resolving

include/Nazara/Core/VirtualDirectoryFilesystemResolver.inl

@@ -0,0 +1,17 @@
+// 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/VirtualDirectoryFilesystemResolver.hpp>
+#include <Nazara/Core/Debug.hpp>
+
+namespace Nz
+{
+	inline VirtualDirectoryFilesystemResolver::VirtualDirectoryFilesystemResolver(std::filesystem::path physicalPath, OpenModeFlags fileOpenMode) :
+	m_physicalPath(std::move(physicalPath)),
+	m_fileOpenMode(fileOpenMode)
+	{
+	}
+}
+
+#include <Nazara/Core/DebugOff.hpp>