(NDK) Added Listener component and system

Former-commit-id: 0553c4ad9a7e33608e9ab91bd4ca8812272a6293

SDK/src/NDK/Sdk.cpp

@@ -13,7 +13,9 @@
 #include <Nazara/Utility/Utility.hpp>
 #include <NDK/Algorithm.hpp>
 #include <NDK/BaseSystem.hpp>
+#include <NDK/Components/ListenerComponent.hpp>
 #include <NDK/Components/NodeComponent.hpp>
+#include <NDK/Systems/ListenerSystem.hpp>
 
 namespace Ndk
 {
@@ -45,8 +47,12 @@ namespace Ndk
 			BaseSystem::Initialize();
 
 			// Composants
+			InitializeComponent<ListenerComponent>("NdkList");
 			InitializeComponent<NodeComponent>("NdkNode");
 
+			// Systèmes
+			InitializeSystem<ListenerSystem>();
+
 			NazaraNotice("Initialized: SDK");
 			return true;
 		}