there's no alternative for fuel-plugin --install plugin.rpm for fuel2 cli

[Ruslan Khozinov]

Env description:
[root@nailgun ~]# fuel2 fuel-version
+-------------------+-------------+
| Field | Value |
+-------------------+-------------+
| api | 1 |
| auth_required | True |
| feature_groups | [] |
| openstack_version | newton-10.0 |
| release | 10.0 |
+-------------------+-------------+

[root@nailgun ~]# cat /etc/fuel_build_id
1407
[root@nailgun ~]# cat /etc/fuel_build_number
1407
[root@nailgun ~]# cat /etc/fuel_release
10.0

[root@nailgun ~]# fuel plugins --install
usage: fuel plugins [-h]
                    [--list | --install PLUGIN_FILE | --remove PLUGIN_NAME==VERSION | --register PLUGIN_NAME==VERSION | --unregister PLUGIN_NAME==VERSION | --update PLUGIN_FILE | --downgrade PLUGIN_FILE | --sync]
                    [--plugin PLUGIN [PLUGIN ...]] [--force]
fuel plugins: error: argument --install: expected one argument

[root@nailgun ~]# fuel2 plugins
fuel2: 'plugins' is not a fuel2 command. See 'fuel2 --help'.
Did you mean one of these?
  plugins list
  plugins sync
  sequence create
  sequence delete
  sequence download
  sequence execute
  sequence list
  sequence show
  sequence update

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/442320

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/newton
Review: https://review.openstack.org/450174

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/442320
Committed: https://git.openstack.org/cgit/openstack/python-fuelclient/commit/?id=b765ac3814eee9ef7d0d2077b6d89ccb97eb745a
Submitter: Jenkins
Branch: master

commit b765ac3814eee9ef7d0d2077b6d89ccb97eb745a
Author: Fedor Zhadaev <email address hidden>
Date: Tue Mar 7 12:50:07 2017 +0400

    Add two plugins related commands into fuel2

     * fuel2 plugins install <path>
     * fuel2 plugins remove <name> <version>

    DocImpact
    Change-Id: Id166eacad0ffe8b9f6fd98519aaa15246a9c1956
    Closes-Bug: #1668253

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/450174
Committed: https://git.openstack.org/cgit/openstack/python-fuelclient/commit/?id=85035fbd18193dd3f7c638f5d6f6d4e99fedf5ed
Submitter: Jenkins
Branch: stable/newton

commit 85035fbd18193dd3f7c638f5d6f6d4e99fedf5ed
Author: Fedor Zhadaev <email address hidden>
Date: Tue Mar 7 12:50:07 2017 +0400

    Add two plugins related commands into fuel2

     * fuel2 plugins install <path>
     * fuel2 plugins remove <name> <version>

    DocImpact
    Change-Id: Id166eacad0ffe8b9f6fd98519aaa15246a9c1956
    Closes-Bug: #1668253

[Vladimir Khlyunev (vkhlyunev)]

verified at 1575 build