Add Fizz Buzz in Moonscript

[kimageary]

To request a new code snippet, please fill out the following:

Project name: Fizz Buzz
Project link: https://sampleprograms.io/projects/fizz-buzz/
Language: Moonscript

If this code snippet will also be the first in a new language, please fill out the following:

Official Language Style Guide: https://moonscript.org/reference/
Official Language Website:
Official Language Docker Image: https://hub.docker.com/r/repository/image

[rzuckerm]

@kimageary You are assigned