Comment 8 for bug 1753474

Reviewed: https://review.openstack.org/550086
Committed: https://git.openstack.org/cgit/openstack/tripleo-ui/commit/?id=6e55c9f0a549e533a5e470120f58c78b73dc70b0
Submitter: Zuul
Branch: master

commit 6e55c9f0a549e533a5e470120f58c78b73dc70b0
Author: Jiri Tomasek <email address hidden>
Date: Tue Mar 6 14:55:38 2018 +0100

    Make Validation actions use startWorkflow

    This patch makes runValidation use startWorkflow wrapper to properly
    handle it's execution. This change makes handling validations much
    simpler as there is no specific onFinished callback needed as validations
    only operate on incoming workflow executions which is handled by
    WorkflowActions by default.

    To properly distinguish between start validation and finished validation
    messages (which use the same type) additional logic to zaqar action
    was added.

    runValidationGroups action remains the same as we handle validations
    individually

    Partial-Bug: #1753474
    Change-Id: Ie0f2f1c5175ca8b87fe7ed672548bc9c59865ae0