(NDK) Added explicit initialisation

Components and systems just can't be initialized at startup, so we need
some kind of explicit initialisation. I followed the same layout as the
others modules by adding a core class (Ndk::Sdk) which will initialize
components and systems, and Nazara's modules.

This is starting to get serious, I like it.


Former-commit-id: 263500e8d16db70ef7f92047b8a7e3235c08bcd0

SDK/include/NDK/Algorithm.inl

@@ -30,4 +30,18 @@ namespace Ndk
 	{
 		return SystemType::systemIndex;
 	}
+
+	template<typename ComponentType, unsigned int N>
+	ComponentIndex InitializeComponent(const char (&name)[N])
+	{
+		ComponentType::componentIndex = ComponentType::RegisterComponent(name);
+		return ComponentType::componentIndex;
+	}
+
+	template<typename SystemType>
+	SystemIndex InitializeSystem()
+	{
+		SystemType::systemIndex = SystemType::RegisterSystem();
+		return SystemType::systemIndex;
+	}
 }