+ AUTaxFileNumberField

[FrancoisConstant]

Hello,

I've added AUTaxFileNumberField (form and model) + AUTaxFileNumberFieldValidator.

It's based on the AUBusinessNumberField.

This is my first contribution and I hope it's all good.

All Changes

• Add an entry to the docs/changelog.rst describing the change.

• Add an entry for your name in the docs/authors.rst file if it's not
  already there.

• Adjust your imports to a standard form by running this command:

  isort --recursive --line-width 120 localflavor tests

New Fields Only

• Prefix the country code to all fields.
• Field names should be easily understood by developers from the target
  localflavor country. This means that English translations are usually
  not the best name unless it's for something standard like postal code,
  tax / VAT ID etc.
• Prefer 'PostalCodeField' for postal codes as it's
  international English; ZipCode is a term specific to the United
  States postal system.
• Add meaningful tests. 100% test coverage is not required but all
  validation edge cases should be covered.
• Add .. versionadded:: <next-version> comment markers to new
  localflavors.
• Add documentation for all fields.

[benkonrath]

Thanks for your contribution. I'll be able to review this over the weekend during the Dutch Django sprint.

[benkonrath]

Please add a link to the this github issue like the other changelog entries.

[benkonrath]

Looks great! Thanks for your contribution. Please update the changelog as requested and rebase / squash all the commits into one commit. Once that this done I'll merge this PR. Thanks.

[FrancoisConstant]

Thanks @benkonrath - the commits are squashed.

[benkonrath]

Merged via fd9fcf1.