Adding the 8th simple problem for week0

- is_int_palindrom(n)
Adding the 9th simple problem for week0

- contains_digit(number, digit)
Adding the 10th simple problem for week0

- contains_digits(number, digits)
Adding the 11th simple problem for week0

- is_number_balanced(n)
Adding the 12th simple problem for week0

- count_substrings(haystack, needle)
Adding the 13th simple problem for week0

- count_vowels(str)
Adding the 14th simple problem for week0

- count_consonants(str)
Adding the 15th and 16h simple problems

- number_to_list(n)
- list_to_number(digits)
Adding the 17th simple problem for week0

- biggest_difference(arr)
Adding the 18th simple problem for week0

- slope_style_score(scores)
Adding the 19th simple problem for week0

- is_increasing(seq)
Rewording - write -> implement
Adding the 20th simple problem for week0

- is_decreasing(seq)
Adding the 21st simple problem for week0

- what_is_my_sign(day, month)
Adding the 22nd simple problem for week0

- prime_factorization(n)
Adding the 23th simple problem for week0

- calculcate_coins(sum) - From FMIY2013
Refactoring - add names to all problems
Refactoring and spellchecking
Adding README file for how to test problems