This module takes care of formatting a number to a currency
Formats a number to currency
format(Integer.t, Atom.t) :: String.t
iex> CurrencyFormatter.format(123456) “$1,234.56”
iex> CurrencyFormatter.format(654321, :eur) “€6.543,21”
iex> CurrencyFormatter.format(654321, “AUD”) “A$6,543.21”