Update Wikipedia Cite book format

[hornc]

Closes #

• Matches order of Cite book template (completes the move from the original Citation template)
• Strips whitespace from LCCNs (whitespace breaks the loc link)
• Correctly adds ISSNs, if present
• Correctly adds first_publish_date if different from date

Technical

Testing

Screenshot

Before:

After:

Stakeholders

[hornc]

Ideas for further improvements (in a subsequent PR or issue):

• Use last{n}= first{n}= in place of author{n} if the author field contains no commas and can be assumed to be in 'natural name' order. Might need to check eastern_order to get this right in all cases.
• Use ISO 639 language code for language: (if available)
• ol-access=free to be set if there is a free access, non-registered version available
• Hyphenate ISBNs for display (e.g. using something like https://github.com/hornc/isbn_hyphenate ) (Out of scope?)