Entities Sandbox UI

Entities Sandbox allows API users to verify their calls before operating in our Production environment. There are a number of cases where API users would like to verify data, create data, or locate test data, and struggle with doing that. Providing a UI would enable them to address these tasks easier.

Review is required to understand the state of each of the Sandbox UI's, complete outstanding updates and test. Work with Search will be needed as search in the Sandbox UI would prove highly valuable for test data purposes.

**Note: launch to public users requires that we address RAID 786 for masking data in Sandbox**

Start by locating each existing Sandbox UI and reviewing its current state, outstanding updates, and tests. Coordinate with the Search work to determine how test data should be located; done means the Sandbox UI supports verifying, creating, and locating test data, with testing completed and the RAID 786 masking requirement addressed before public launch.

Written by the indexing model from the issue text.