Add missing sdl init

src/td/display/Display.cpp

@@ -13,7 +13,7 @@ namespace td {
 
 Display::Display(int a_Width, int a_Height, const std::string& a_Title) :
 	m_LastWidth(0), m_LastHeight(0), m_AspectRatio(1), m_ShouldClose(false) {
-
+   SDL_Init(SDL_INIT_VIDEO);
 	m_Window = SDL_CreateWindow(a_Title.c_str(), a_Width, a_Height, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
 
 	m_LastWidth = a_Width;