Strip full path from zip archive in post-processor compress

[kotofos]

Feature Description

Option (possibly on by default) to strip full absolute path from archive generated by post-processor "compress".

Use Case(s)

When compressing artifact I want resulting archive to not include full filesystem path (like /Users/username/project/...)

see https://groups.google.com/forum/#!topic/packer-tool/lQXn-mpUPoQ

[SwampDragons]

Thanks for opening this!