Fizz buzz tree update

[monaSalih]

• If the value is divisible by 3, replace the value with “Fizz”
• If the value is divisible by 5, replace the value with “Buzz”
• If the value is divisible by 3 and 5, replace the value with “FizzBuzz”
• If the value is not divisible by 3 or 5, simply turn the number into a String.
• create ktree
• check if the node can divide on 3 or 5 or both