(NDK) Added Velocity component/system

Former-commit-id: 427b7175fbf9723fcd1d54fc279b8b70167745d4

SDK/src/NDK/Components/VelocityComponent.cpp

@@ -0,0 +1,10 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
+
+#include <NDK/Components/VelocityComponent.hpp>
+
+namespace Ndk
+{
+	ComponentIndex VelocityComponent::componentIndex;
+}