Support reading .gitignore if present to ignore paths

[nuke-web3]

Is your feature request related to a problem? Please describe.

I don't want to duplicate the paths listed in .gitignore in mlc config. I would like the option (on by default) to use .gitignore as a baseline, and then respect ignoring any additional paths defined in the config.

Describe the solution you'd like

Ideally detecting this present in the pwd and/or target path to do check on and using it automatically would be great. Alternative patters:

• define the file for paths to ignore https://stackoverflow.com/a/66409885
• have an ignore file import other files Proposal: Filter using ".gitignore" first, then ".prettierignore" second prettier/prettier#8506 (comment)
• a way to ignore global presets Add support for ignorePath configuration option prettier/prettier#8192

Describe alternatives you've considered

Duplication of the ignore settings in this and other tools 🙃

[becheran]

Good idea. It would require to add and support the full gitignore syntax in mlc which is currently not the case.

[nuke-web3]

Looks like almost a drop in replacement for https://docs.rs/walkdir/latest/walkdir/ could be https://docs.rs/ignore/latest/ignore/ 🤔 might need some more CLI and config tweaks to select specifics about ignoring things. I suspect almost all users would want to default to ignoring .gitignore and .ignore files.

Actually the latter is just a superset of the former 😝
https://github.com/BurntSushi/ripgrep/blob/master/crates/ignore/Cargo.toml#L30

[becheran]

Added optinal .gitignore with: #94