* 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
* Adding Support for SqlOnDemand
* Updating unit test per comment
* Resolving comments. Enabling external table for sqlondemand
* Resolving comments. Enabling External tables for sqlondemand
* Enabling external tables for sqlondemand