Write a function that takes in a string and for each character, returns the distance to the nearest vowel in the string. If the character is a vowel itself, return 0.
DistanceToNearestVowel("aaaaa") ➞ [0, 0, 0, 0, 0]
DistanceToNearestVowel("babbb") ➞ [1, 0, 1, 2, 3]
DistanceToNearestVowel("abcdabcd") ➞ [0, 1, 2, 1, 0, 1, 2, 3]
DistanceToNearestVowel("shopper") ➞ [2, 1, 0, 1, 1, 0, 1]a, e, i, o, u.