public ConwayTerminalDisplay(int width, int height, IConwayModel model)
 {
     this.width = width;
     this.height = height;
     _model = model;
 }
 public ConstantSpeedConwayModelWrapper(IConwayModel innerModel, IClock clock)
 {
     this.innerModel = innerModel;
     this.clock = clock;
 }