There should be an option to prevent files overwrite for unpack-dependencies and unpack

There should be an option to prevent file overwrite when extracting files.

This option is very helpful when unpack or unpack-dependencies happens after process-resouce phase.

Currently, there is overwriteRelease, overwriteSnapshot, overwriteIfNewer. But they all work on the artifact scope (that means decide if a whole artifact should overwrite), not files scope (if a file should overwrite an existing file).