Add checking that all plugins info collected into fuel-stats

[Alexander Kislitsky]

We have added new plugins info fields, but they don't added to statsender.
We should implement checking that required fields added into installastion info in statsender.py

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/251871

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/251871
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=5ded5017e5ec3417b6799fe878a4c20fe4757691
Submitter: Jenkins
Branch: master

commit 5ded5017e5ec3417b6799fe878a4c20fe4757691
Author: Alexander Kislitsky <email address hidden>
Date: Tue Dec 1 16:40:53 2015 +0300

    New plugin data is collected in statsender

    White list for plugins info added into statsender.
    Now we are checking that all plugin data is collected in tests. In
    case of adding new property to Plugin DB model test checks that
    this field is collected by statsender.

    Change-Id: Iae3f41b839172b5f6d4f79b207b2a19c309b6e8b
    Closes-Bug: #1521596