Move SDK include and source to base

include/NazaraSDK/Sdk.hpp

@@ -0,0 +1,31 @@
+// Copyright (C) 2017 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
+
+#pragma once
+
+#ifndef NDK_SDK_HPP
+#define NDK_SDK_HPP
+
+#include <NazaraSDK/Prerequisites.hpp>
+
+namespace Ndk
+{
+	class NDK_API Sdk
+	{
+		public:
+			Sdk() = delete;
+			~Sdk() = delete;
+
+			static bool Initialize();
+			static bool IsInitialized();
+			static void Uninitialize();
+
+		private:
+			static unsigned int s_referenceCounter;
+	};
+}
+
+#include <NazaraSDK/Sdk.inl>
+
+#endif // NDK_SDK_HPP