Replace float/UInt64 durations by a more precise Time class (#388)

Improve Clock class with atomic RestartIfOver method and allows to choose required precision

src/Nazara/Core/Win32/TimeImpl.hpp

@@ -0,0 +1,20 @@
+// Copyright (C) 2022 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_WIN32_TIMEIMPL_HPP
+#define NAZARA_CORE_WIN32_TIMEIMPL_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Core/Time.hpp>
+
+namespace Nz
+{
+	bool InitializeHighPrecisionTimer();
+	Time GetElapsedNanosecondsImpl();
+	Time GetElapsedMillisecondsImpl();
+}
+
+#endif // NAZARA_CORE_WIN32_TIMEIMPL_HPP