Add a '--ignore' flag that, when passed, causes `imdl torretn create` to
skip files listed in `.gitignore`, `.ignore`, `.git/info/exclude`, and
`git config --get core.excludesFile`.
Also switches from the `walkdir` crate to the `ignore` crate, which uses
`walkdir` internally, and which handles `.gitignore` and `.ignore`
files.
This changes the behavior of `-include-hidden` on MacOS to no longer
skip entries with the hidden attribute set, due to `ignore` not exposing
`walkdir`'s filter functionality.
A PR[0] is pending to add filtering to `ignore`, so hopefully this
functionality can be re-implemented soon.
[0] https://github.com/BurntSushi/ripgrep/pull/1557
type: added
fixes:
- https://github.com/casey/intermodal/issues/378