Add contrb/zfs/ and add self as maintainer of ZFS storage driver. Upstream-commit: d9fbdd7b3f8e1507ed6f08ed99fab4d983108719 Component: engine
The `contrib` directory contains scripts, images, and other helpful things which are not part of the core docker distribution. Please note that they could be out of date, since they do not receive the same attention as the rest of the repository.