da-DK license plates

[woller]

Motivation / Background

This Pull Request has been created because it was not possible to generate valid Danish license plates. It adds the simplest possible license plates consisting of 2 letters and 5 digits. It follows the rules laid out on the Danish Wikipedia.

Additional information

Checklist

Before submitting the PR make sure the following are checked:

• This Pull Request is related to one change. Changes that are unrelated should be opened in separate PRs.
• Commit message has a detailed description of what changed and why. If this PR fixes a related issue include it in the commit message. Ex: [Fix #issue-number]
• Tests are added or updated if you fix a bug, refactor something, or add a feature.
• Tests and Rubocop are passing before submitting your proposed changes.

If you're proposing a new generator or locale:

• Double-check the existing generators documentation to make sure the new generator you want to add doesn't already exist.
• You've reviewed and followed the Contributing guidelines.

[stefannibrasil]

Could you also add screenshots of using this in the console (bundle exec rake console)? Thanks!

[woller]

[stefannibrasil]

Sorry, I just remembered that the generator for license_plate uses the numerify and letterify helpers by default:
https://github.com/faker-ruby/faker/blob/46130d9212932c5ad3e5523413ef2189937f55af/lib/faker.rb#L53 and

The other locale files use these helpers for generating random numbers and letters (including the vehicle english version). Let's follow the pattern for consistency:

Suggested change

	vehicle:
	license_plate: '[A-Z]{2}[0-9]{5}'
	vehicle:
	license_plate: '??#####'

[stefannibrasil]

hi @woller just checking in on the comment above. Apologies for missing the helper in the first place. Thank you!