Feature: ignore relative link that matches a given pattern

[amimas]

Hello - I recently came across a scenario where certain relative links needs to be ignored. This is because when the linter runs, some files are not available where the relative link points to. Those files will be available during runtime. That's why the relative link check on those files fails.

I'd like to propose an option where we can configure an array of regex patterns. The linter will then ignore any links that matches one of the patterns.