feat: add --fix option to autofix issues

[QuiiBz]

As suggested by @juliusmarminge: https://twitter.com/jullerino/status/1703794047104479562

We should add support for a new --fix option, that will try to fix issues as much as possible. We can add a fn fix(&self) -> bool to the Issue trait, that will be executed on each issue. Returning true means the fix was successful, false that it wasn't:

sherif/src/rules/mod.rs

Line 45 in 7b5a207

pub trait Issue {

• feat: autofix empty-dependencies #14
• feat: autofix root-package-private-field #17
• feat: autofix types-in-dependencies #18
• feat: autofix non-existant-packages #30
• feat: autofix packages-without-package-json #31
• feat: autofix multiple-dependency-versions #33
• root-package-dependencies isn't auto fixable
• root-package-manager-field how to detect properly the package manager + version to use?

[QuiiBz]

Re-opening, only a single rule is auto-fixable right now.

[QuiiBz]

Released in https://github.com/QuiiBz/sherif/releases/tag/v0.6.0