Adding salt.modules.zpool.online to allow changing the status of a device in pool to online
Adding salt.modules.zpool.offline to allow changing the status of a device in pool to offline
Adding ability to bring a device offline temporarily in salt.modules.zpool.offline
Removing trailing whitespace
Merge pull request #18609 from nmadhok/modules-zpool-online/offline

Adding ability in salt.modules.zpool to allow changing the status of a device in pool to online/offline