UIThreadTestMethod should forward DataRow Attribute

`LabsUITestMethod` currently doesn't look for other attributes when being generated.

We should at least create a pattern/work to enable `DataRow` for repeated test scenarios.

Looks like `ExpectedException` is the old pattern and it can be better to use `Assert.ThrowsException` for more granular control, [see blog here with argument](https://makolyte.com/csharp-use-assert-throwsexception-instead-of-expectsexception-attribute/).

So we maybe don't want to forward that one or provide a warning when used at least?

Start by locating LabsUITestMethod generation and the existing attribute-inspection or ExpectedException handling. Determine how DataRow could support repeated UI test scenarios, and define whether ExpectedException should be forwarded or warned about; done means the behavior and its tests are established.

Scritto dal modello di indicizzazione a partire dal testo della issue.