fix: eslint rule for naming convention

[Artxe2]

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This PR could be a continuation of #9104.

I created a plugin to enforce snake_case, and it generates errors for namings other than snake_case, SNAKE_CASE, and PascalCase.
The regular expression is /^[_$]?[_$]?(?:[0-9a-z]+(?:_[0-9a-z]+)*\$?\$?)?$|^[A-Z][0-9A-Z_]*$|^(?:[0-9A-Z][0-9a-z]*)+$/, and it has an auto fix feature for small_snake_case.

There are a few exceptions, such as Property.key and ImportSpecifier.
After fixing about 100 files with eslint --fix, all test cases passed.

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[benmccann]

amazing! thank you!