Add posibility to set debug/verbose per service

[OpenStack Infra]

https://review.openstack.org/219029
commit fc4599f14d1f63d73f5e24d36ffceaeff968ceec
Author: Michał Górniak <email address hidden>
Date: Mon Aug 31 16:18:28 2015 -0500

    Add posibility to set debug/verbose per service

    Each service set up by fuel have they own hash which is pick up by
    hiera. Example:
    hiera_hash('rabbit_hash')
    and in all of those hashes we can put value 'verbose' and 'debug' to
    'true'/'false' to enable/disable debug/verbose for this particular
    service.

    Of course there is possibility to enable it globally in all services and
    those options are picked up like this:
    hiera('verbose')
    hiera('debug')

    Change-Id: Ia2f13ef542a723feb4d35b74f1f5de58ee11f8dd
    Closes-Bug: 1490744
    DocImpact: Set debug/verbose mode per service