release: feature flag consumption (#4489)

[mcgarrye]

This PR addresses #(4459)

• Addresses the issue in full
• Addresses only certain aspects of the issue

Description

Creates the module, controller and service files for the new Feature Flag table. Allows for standard CRUD methods, as well as a list endpoint and an endpoint to add/remove jurisdiction associations with the flag (associateJurisdictions). Permissions are limited to admin only. Flags associated with jurisdictions will appear when jurisdiction data is returned.

How Can This Be Tested/Reviewed?

Start up the backend. Login as an admin, either through the API or partners portal. Test each endpoint:

• Create a feature flag
• Get the feature flag using the id returned ^^
• Update the feature flag using the id
• Get the feature flag to verify update
• Associate jurisdiction(s) with the flag
• Get the feature flag to verify association
• Get the jurisdiction to verify association
• Call the list endpoint
• Remove the jurisdiction(s) using associateJurisdictions
• Get the feature flag to verify removal
• Get the jurisdiction to verify removal
• Delete feature flag
• Call list endpoint to verify

Author Checklist:

• Added QA notes to the issue with applicable URLs
• Reviewed in a desktop view
• Reviewed in a mobile view
• Reviewed considering accessibility
• Added tests covering the changes
• Made corresponding changes to the documentation
• Ran yarn generate:client and/or created a migration when required

Review Process:

• Read and understand the issue
• Ensure the author has added QA notes
• Review the code itself from a style point of view
• Pull the changes down locally and test that the acceptance criteria is met
• Either (1) explicitly ask a clarifying question, (2) request changes, or (3) approve the PR, even if there are very small remaining changes, if you don't need to re-review after the updates

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[ludtkemorgan]

🦃