* initial tests and implementation of Copilot for Business client API
* updated billing settings documentation
* renames and refactors - clarity and simplified
* using context to ensure license clean up
* extra documentation and used ApiOptions instead of custom class
* implemented observable clients
* Fixing convention issues
* renaming for clarity
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Co-authored-by: Nick Floyd <139819+nickfloyd@users.noreply.github.com>