Write a program wipeDiagonalAnimation(picture) which takes as input a picture and creates an animation of the provided picture being wiped (black) top left to bottom right with 45 degree diagonals. See the video for the desired effect.

▪ Initialize all variables you may need.

▪ Create a loop counting the diagonals. Use the dimension of the picture to determine the number of diagonals you need. Inside the loop draw a black diagonal with a loop or addLine. Note that the latter accepts negative values for the coordinates, which will make this exercise easier. Repaint your picture after a diagonal has been drawn.