Adding a YAML file to demonstrate how to include anonymized user IDs in Studio elements.

@singingwolfboy, @cahrens, & @dmitchell - here's a more generalized version of the Studio YML PR. Sorry for the earlier confusion.

In short this PR is to show that Anonymized User IDs can be included for use with outside services, like Qualtrics to   relate users.

Here are the previous PRs for reference:
- The original PR that shows the intent of this feature: #1684 
- The previous too-specific master PR: #1689