* Remove xunit dependency from testdriver
* swap expected/actual as needed
* Convert Test.Common to nunit
* port hosting unit tests to nunit
* port batchparser integration tests to nunit
* port testdriver.tests to nunit
* fix target to copy dependency
* port servicelayer unittests to nunit
* more unit test fixes
* port integration tests to nunit
* fix test method type
* try using latest windows build for PRs
* reduce test memory use
- Add special handling for token expired errors so they send with a clear flag that'll allow clients to take action on this case
- Send error message instead of callstack for all messages, and ensure all resource manager paths send back inner exceptions so users can understand the true root cause.
* Test firewall rule handling is able to process through the service layer
* Additional tests for authentication and the resource wrapper code
* Positive test case for CreateFirewallRule
* Fixed copyright and usings
