* Simplify the design of Response<T> for usability.
* Revert changes to operation<T> to keep the changes single purpose.
* Update many of the response<T> call sites based on API changes.
* Update all remaining callsites and fix clang formatting.
* Update Response<T> documentation.
* Fix clang formatting.
* Remove status code from the Response<T> public surface area.
* Update the changelog.
* Fix up CL wording and remove commented-out change to operation<T>.
* Fixed test by actually calling a method.
* Fix up key vault test by not taking ownership of raw response.
* Fix call to get status code in test.
* Add new line at end of keyvualt live test file.
* Make a local copy within keyvault pipeline to avoid compilers re-ordering things.
* Make the fixes to the recent keyvault changes.
* Fix key vault pipeline to address ImportKey test failure
