Implemented basic containers and ref pointers

src/Engine/Graphics/WindowManager.cpp

@@ -0,0 +1,16 @@
+#include "WindowManager.h"
+
+Seele::WindowManager::WindowManager(GraphicsInitializer initializer)
+{
+	//TODO Parse layout file
+	WindowCreateInfo mainWindowInfo;
+	mainWindowInfo.title = "SeeleEngine";
+	mainWindowInfo.width = 1280;
+	mainWindowInfo.height = 720;
+	Window* mainWindow = new Window(mainWindowInfo);
+	windows.add(mainWindow);
+}
+
+Seele::WindowManager::~WindowManager()
+{
+}