Fix wrong test location on build.ps1

Author: CarlosLanderas

build.ps1

@@ -42,7 +42,7 @@ echo "running tests"
 
 try {
 
- Push-Location -Path .\tests\FunctionalTests
+ Push-Location -Path .\test\FunctionalTests
 
  exec { & dotnet xunit -configuration Release --fx-version 2.0.0 }
  } finally {