Using Racket, write a function that takes a list of numbers, all 0 or 1, and produces a necklace representing the list. 0's should produce 'DarkBlue beads of size 10, and 1's should produce 'Gold beads of size 7. These beads should be strung together into a necklace, as shown below for the list (list 0 1 1 0 1 0 0 1).