Instance Action Dashboard Blueprint

Create a new dashboard in Horizon to show the actions taken on the
tenant's instances in reverse date order (latest first). This provides
the user with a view of what's been happening in their environment, and
any errors that have occurred.

Co-Authored-By: Nicolas Simonds <nicolas.simonds@metacloud.com>
Co-Authored-By: David Lapsley <david.lapsley@metacloud.com>
Co-Authored-By: Diana Whitten <diana.whitten@metacloud.com>
Implements: blueprint instance-actions-dashboard
Change-Id: I9cf54db7c2c65ac4679587fa2d8d185a04ae25dc
Merge "Instance Action Dashboard Blueprint"