This patch follows on the example that the Containers set, providing
a 'switch' in the panel-enablement file that currently defaults to
'legacy' (Python-based Images panel) and allows for 'angular' (Angular-
based Images panel).
To be clear, this does NOT enable Angular Images. It's just setting the
stage to do so at some point, or to allow deployers/devs to easily switch
between the two.
A switch both for HORIZON_CONFIG and for integration tests is necessary
due to the way integration tests operate.
Co-Authored-By: Timur Sufiev <tsufiev@mirantis.com>
Change-Id: I12cd33552218ed1082d2d9a2ae8982639a217a6a
Partially-Implements: blueprint angularize-images-table
20bc6e1516