Generates a array of 7 digits where the sum of the digits is divisible by 7.
zeroed_digits_at_start controls how many digits are zeroed at the start of the array
Generates a losedows 95 OEM key in the format CCCDD-OEM-00AAAAA-RRRRR where CCC is 3 digits < 367 and DD is 95 or 96 or 97 or 98 or 99
or 00 or 01 or 02 or 03 and RRRRR is 5 random digits
and AAAAA is 5 digits where the sum of the digits is divisible by 7 with no remainder
Generates a losedows 95 retail key in the format BBB-AAAAAAA where BBB is 3 digits that are not 333 or 444 or 555 or 666 or 777 or 888 or 999
and AAAAAAA is 7 digits where the sum of them is divisible by 7 with no remainder. Losedows 95 does not actualy care about charector 3