Rewrite tests to use FluentAssertions and NSubstitute, separate service and repository
Add build assemblies for TFS
Change to use MS-Test
Add NUnit
Add NUnit dlls
Refactored Guard to prevent nameclash with NUnit
Change test framework to NUnit
Change test framework to NUnit
Added EmployeeService
Refactor Test to use NSubstitute
Refactor test to use NSubsitute