Added enum custom field names option

[ReallyLiri]

Useful for non-string enums.
Also added String() impl for such enums.

[Ludonope]

Precisely what I was looking for, thank you!

Could be interesting to also try to support the OAS 3.1 recommended syntax

MyEnum
  type: integer
  oneOf:
    - title: First
      const: 1
      description: "First value of my enum"
    - title: Second
      const: 2
      description: "Second value of my enum"

[tdakkota]

Could you reword commits to follow Conventional Commits, please?

Also, it seems some CI tests failed.

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (ae6b3c9) 72.20% compared to head (870d940) 72.22%.
Report is 28 commits behind head on main.

❗ Current head 870d940 differs from pull request most recent head fddcc94. Consider uploading reports for the commit fddcc94 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1015      +/-   ##
==========================================
+ Coverage   72.20%   72.22%   +0.02%     
==========================================
  Files         192      192              
  Lines       15027    15040      +13     
==========================================
+ Hits        10850    10863      +13     
- Misses       3641     3642       +1     
+ Partials      536      535       -1     

Files	Coverage Δ
jsonschema/schema.go	100.00% <ø> (ø)
gen/schema_gen_primitive.go	91.32% <90.90%> (+0.95%)	⬆️
jsonschema/parser.go	82.15% <25.00%> (-0.48%)	⬇️

... and 1 file with indirect coverage changes

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[ReallyLiri]

Unfortunately I don't have the time to invest in getting this PR "to code", if anyone wants to pick it up, please do.