Implement data deletion in U-DS

[brianlee731]

Based on ASIPS interaction with U-DS, they've identified a Use Case where they need to be able to delete data from our system (from the bucket AND the data catalog).

-Implement an approach/functionality that allows Users to delete their data off of both the S3 bucket and data catalog.
-Create Gherkins Test Case
-Add this capability to the documentation
-If needed, update unity sds client

• [New Feature]: Add delete granule to unity_sds_client unity-monorepo#51
• [New Feature]: Implement DELETE endpoint for granule unity-data-services#484

[brianlee731]

Waiting on me to address Mike's code review comments.