modules/zpool : make it available for compatible Solaris family
modules/zpool : make it available for compatible Solaris family

The whole module has been reviewed for a better compliance with Salt and now
Solaris (> 5.9) / SmartOS can use it. Some commands have been simplified and
the idea is to provide another module for the 'zfs' command support.

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt