GH-50 Org list performance

[auniverseaway]

• All org permissions requested in parallel (map + promise.all)
• Tests!

Resolves: GH-50

How Has This Been Tested?

E2E and Unit

I'm seeing responses no greater than 1s. This is down from 3s+ on cold starts.

Screenshots (if appropriate):

Types of changes

• [X] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [X] I have signed the Adobe Open Source CLA.
• [X] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [X] I have read the CONTRIBUTING document.
• [X] I have added tests to cover my changes.
• [X] All new and existing tests passed.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 86.13%. Comparing base (647e437) to head (1afb283).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #51 +/- ## ========================================== + Coverage 85.79% 86.13% +0.33% ========================================== Files 14 15 +1 Lines 915 959 +44 ========================================== + Hits 785 826 +41 - Misses 130 133 +3 ```

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