Use Cliff's formatters for fuel-verion

[OpenStack Infra]

https://review.openstack.org/329085
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.

commit 36cc4f1953e558fbdcc3211d9c0d899fe6926832
Author: Roman Prykhodchenko <email address hidden>
Date: Mon Jun 13 18:15:52 2016 +0200

    Use Cliff's formatters for fuel-verion

    fuel-version command used to be introduced by just copying
    and pasting code from the deprecated --fuel-version action.

    Since now that action was removed it's time to re-factor
    the new command to utilize Cliff's features.

    Related-bug: #1590571
    DocImpact: Added new options for showing version of Fuel in
               different formats: -f/--format {json,shell,table,value,yaml}
               the output format, defaults to table
    Change-Id: I1dfe6b25c11e0da533c9cf99f67d28ac652c33dc