## Description
Logic for List retrieval from M365 back store. Keeping separate from Collection creation logic as there are a lot of calls to retrieve all supporting relationship data from the backstore.
Adds collection to
## Type of change
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- [x] 🌻 Feature
## Issue(s)
<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
*closes #1475<issue>
## Test Plan
- [x] ⚡ Unit test
e767bb0b77