Generates population test data based on universal estimates

./population_generator.py --estimates australia.json --population-size 5000

http:https://www.abs.gov.au/ausstats/[email protected]/Latestproducts/3101.0Feature%20Article1Jun%202018?opendocument&tabname=Summary&prodno=3101.0&issue=Jun%202018&num=&view=* ABS Census Table Builder