feat: isISO15924

[xDivisionByZerox]

Description

This PR adds the validator isISO15924 to validate for correct ISO-15924 script codes.

Additional Information

• Wikipedia Entry
• Offical Unicode Website

Closes #2214.

Checklist

• PR contains only changes related; no stray files, etc.
• README updated (where applicable)
• Tests written (where applicable)
• References provided in PR (where applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.95%. Comparing base (b958bd7) to head (deb7c40).
Report is 67 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2215   +/-   ##
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  Coverage   99.95%   99.95%           
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  Files         107      108    +1     
  Lines        2454     2456    +2     
  Branches      619      620    +1     
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+ Hits         2453     2455    +2     
  Partials        1        1           

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[WikiRik]

Thanks for opening up this PR! Overall it looks good. I wrote down one small suggestion.

Also; I did also notice new codes were added in the meantime. Could you add them as well?

[WikiRik]

Suggested change

	// from https://en.wikipedia.org/wiki/ISO_15924
	// from https://www.unicode.org/iso15924/iso15924-codes.html

Personally I prefer linking to the more official links instead of Wikipedia. It's fine in the README where more context is useful, but for the actual code this is better for me.

[xDivisionByZerox]

Sure thing. I'm completly with you here. I think I was a bit lazy when I created this PR 😅

[xDivisionByZerox]

Also; I did also notice new codes were added in the meantime. Could you add them as well?

I added the missing codes. The dataset is up to date now.

[WikiRik]

Thanks!

[profnandaa]

Thanks for your contrib.

However, I'm trying to understand this feature. What would be an example of real-world usage?

[xDivisionByZerox]

At FakerJS we would use this, to verify that our locale metadata have a valid "script" property (defined by ISO-15924) applied to them.

https://github.com/faker-js/faker/blob/489bbc243f3094464888bdf7fb90835fcfa57691/test/locale-imports.spec.ts#L46-L61

Hope this applies for "real-world usage".

[xDivisionByZerox]

I don't want to be pushy, but could I get an update if this PR is considered to be merged into the lib? 😅