Generalize archive helpers

[neoeinstein]

Provide a more comprehensive suite of archive and compression helpers, including zip, gzip, bzip2, tar, and tar.gz/tar.bz2.

This module isn't AutoOpen, and should be considered as a general case replacement for the ZipHelper module (which is AutoOpen). The modules in ArchiveHelper could be expanded to support some of the use cases provided in ZipHelper, but this is a good base from which to start.

Note that this will fail to build documentation until #719 is resolved. (.\build GenerateDocs fails)

[forki]

cool.

is it possible to let the ziphelper call these functions?

[neoeinstein]

I can modify ZipHelper to delegate to these functions. I'll make sure all the PascalCased functions do the right delegation. Do we particularly care about keeping the camelCased functions, or are these generally considered open to removal? Correction. The camelCased functions in ZipHelper are private, so they can be removed without worrying about breaking anyone.

[neoeinstein]

With these changes, would there be any interest in marking ZipHelper as Obsolete, encouraging people to move over to the analogues in ArchiveHelper without breaking existing consumers?

[forki]

thanks. for adding this.