Custom rules default message

[kokolijk]

Custom rules default messages in a simple way

Why this feature is required (specific use-cases will be appreciated)?

So that other languages can use this framework

[thetutlage]

Issue doesn't adhere to the guidelines of creating a proper issue.

1. Make sure that you are only reporting bugs or submitting feature requests on Github.
2. In case of feature requests, please be descriptive and explain how this feature helps a broader audience and not just you.

If you are not submitting a bug and neither a feature request, then please use the discussion threads

In any case, issues which are not descriptive enough will be closed. Please respect our time.