[RFE] Allow user to see version information from UI

[Liz Blanchard]

Description
===========
Especially during debugging, allowing the user to find version information within the UI would be very helpful.

See the following mock up as an idea of how and where to present this information:
https://lizsurette.github.io/OpenStack-Design/tripleo-ui/3-tripleo-ui-edge-cases/4.viewaboutinformation

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/519835

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/519835
Committed: https://git.openstack.org/cgit/openstack/tripleo-ui/commit/?id=65f90dc2344e0bf44393e46f9a9305f9d8258626
Submitter: Zuul
Branch: master

commit 65f90dc2344e0bf44393e46f9a9305f9d8258626
Author: Honza Pokorny <email address hidden>
Date: Tue Nov 14 19:50:51 2017 -0400

    Add version and git sha to debug modal

    We add the 'version' and 'gitSha' keys to the AppConfig record, and we
    implement the appropriate selectors. The old webpack version loader is
    repurposed into a DefinePlugin which we use to define the VERSION and
    GITSHA variables. Those are read during store hydration, and their
    values are stored in the app state.

    Change-Id: I9fbef9c62c150aa89bc44bfb8065976a73efde25
    Closes-Bug: #1731972

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-ui 9.0.0 release.