[FeatureRequest] RunOnce flag onthe SailfishMethodSetup/Teardown and SailfishIterationSetup/Teardown

[paulegradie]

When specifying classnames for lifecycle methods, it would be great if we could specify, e.g. one method setup for two methods - and only have that setup run once.
e.g.

[SailfishMethodSetup(RunOnce: true, nameof(MethodA), nameof(MethodB))]
public void Setup(){ }

[SailfishMethod]
public void MethodA() => ...

[SailfishMethod]
public void MethodB() => ...

Where the Setup() method is executed once before the first method invocation.