Update documentation for BeforeExecutionExclusionFileFilter

[romani]

Check documentation: https://checkstyle.org/config_filefilters.html#BeforeExecutionExclusionFileFilter

We need to have example of how user can exclude test folders in projects.

Detected at checkstyle/eclipse-cs#132

[romani]

thanks a lot for desire to help
please read #7698
and see latest referenced commit to see where and what was changed.
You just need to change another file, all website doc are in our sources.

[Ritik2604]

I think the previous contributor is not interested If you want me to work on it I will happily do so @romani @timurt

[Ritik2604]

Just found a new easy way to exclude test directories as well as files for checking which is totally different from this mentioned issue.

Is there an easy way to exclude Maven test directories from checking?
at checkstyle/eclipse-cs#132

Do I add the steps to the Documentation

[romani]

We need update on Filter documentation on how to use this Filter in xml config.

We do not need idea setup, we already have it.
https://checkstyle.org/idea.html

[Ritik2604]

@romani that is not an idea setup I just show how to exclude test files directories for checking. In doc I will write it in steps. As discussed at checkstyle/eclipse-cs#132 that steps are not applicable in new version so thats why these are the steps that will help. At checkstyle/eclipse-cs#132 there are two methods discussed one with xml config and other one the easy one with ide I have to add both methods or only the xml config one. I prefer both.

[romani]

merged