First Window/Renderer with SDL2!

A great introduction to SDL2: https://www.youtube.com/watch?v=MeMPCSqQ-34

Doc to functions

SDL_CreateWindow: https://wiki.libsdl.org/SDL_CreateWindow

SDL_CreateRenderer: https://wiki.libsdl.org/SDL_CreateRenderer

**SDL_Delay: **https://wiki.libsdl.org/SDL_Delay