Feature request: Add archive filtering

[obriat]

For security reason I need to search and delete files from my final archive (e.g.: *.txt, *.md, *.json, node_module, ...).
Could filtering parameters be added to the taskPack::addDir taskPack::add methods or add a filtering method :

<?php
$this->taskPack(<archiveFile>)
->addFile('dir/file.txt', 'file.txt')  
->filtering('*.txt', '*.md', 'toto/**/node_module')  
->run();`

I don't want to modify the source folder (I still have git actions to perform on it).
I tried to copy my origin folder but its to slow.

[obriat]

I made a PR #964, comments are welcome