Add ignore_path parameter for ESLint task

[tom-combet]

Q	A
Version	1.5.0
Bug?	no
New feature?	yes
Question?	no
Documentation?	no
Related tickets	none

GrumPHP should support a custom eslintignore path parameter for eslint task.
My eslintrc.js and .eslintignore files are in a subfolder. Config file is recognized but not the ignore one. If I put .eslintignore file at the root of the project, it's recognized.
The new task parameter could be called ignore_path and would use --ignore-path eslint command line option.

[veewee]

I'dd surely accept a PR for that. Care to give it a try @Kaudaj ?

[tom-combet]

Ok I accept the mission! 😎
By the way, do you prefer I create directly a discussion instead of an issue next time?

[veewee]

Sure, let me know if you have any questions.

We use the issues section for tracking real bugs and discussions for q/a or feature requests.