draws a blokerakt chain. colours are based on hic et nunc wallet id of the viewer ::: based on hic et nunc template by @sableraph ::: modified by AliaK ::: made in p5.js after watching @sableraph's video tutorial for Processing's 20th anniversary #sketch4processing weekend also displays the viewer's wallet id in the image, though the digits are overwritten as the drawing progresses 22/08/2021