Isbn hyphenation

[axiomizer]

For #2892

Here is information about the range message: https://www.isbn-international.org/range_file_generation. That page also has a link to download the range message, and provides the URL where you can send a request for the range message. I happened to notice that the range message had 1 very minor update over a period of about 3 days. This could help inform a decision about how often, or if, we need to update the range message in production. In this PR I included a function that can be used to update the range message, but it isn't called anywhere.

[axiomizer]

As detailed on wikipedia and in this manual, the ISBN-13 has 5 parts: GS1 prefix, registration group, registrant, publication, and checksum. The GS1 prefix is always 3 digits, and the checksum is always 1 digit. The other parts are variable length, and the range message helps determine their length for a given ISBN-13.

[axiomizer]

Tests:

>>> from bookwyrm.isbn.isbn import hyphenator_singleton as hyphenator
>>> hyphenator.hyphenate('9780439554930')  # 978-0 (English language) 3700000-6389999
'978-0-439-55493-0'
>>> hyphenator.hyphenate('9782070100927')  # 978-2 (French language) 0000000-1999999
'978-2-07-010092-7'
>>> hyphenator.hyphenate('9783518188125')  # 978-3 (German language) 2000000-6999999
'978-3-518-18812-5'
>>> hyphenator.hyphenate('9784101050454')  # 978-4 (Japan) 0000000-1999999
'978-4-10-105045-4'
>>> hyphenator.hyphenate('9786269533251')  # 978-626 (Taiwan) 9500000-9999999
'978-626-95332-5-1'
>>> hyphenator.hyphenate('9798627974040')  # 979-8 (United States) 4000000-8499999
'979-8-6279-7404-0'
>>> hyphenator.hyphenate('9786268533251')  # 978-626 (Taiwan) 8000000-9499999 (unassigned)
'9786268533251'
>>> hyphenator.hyphenate('9786769533251')  # 978 range 6600000-6999999 (unassigned)
'9786769533251'
>>> hyphenator.hyphenate('9798311111111')  # 979-8 (United States) 2300000-3499999 (unassigned)
'9798311111111'
>>>

[mouse-reeve]

In my naivety I would have thought you could solve this with a simple regex! Thank you for such a thorough PR. I think it may make the most sense to update the ranegfile from a management command? But that's a question for another day.