Does not play nice with xUnit.v3

[mmicco-godaddy]

Because xUnit.v3 is a drop in replacement to xUnit, where the namespaces overlap, if you are using Xunit.Gherkin.Quick you cannot upgrade to use xUnit.v3. It might be nice to create an XUnit.Gherkin.Quick.v3 that uses the v3 reference.

Note: I didn't do a lot of digging to see if there were any work around; I just removed xUnit from my test project and added xUnit.v3. Because Xunit.Gherkin.Quick still has the reference to xUnit, you then get namespace collisions..