Record a SourcesFileResults.Row for generated sources

[timtebeek]

What's your motivation?

• Partial(?) fix for ScanningRecipes that don't add/modify/delete files should report the estimated time savings other than zero #4909

Anything in particular you'd like reviewers to focus on?

Do we want to see additional effort logged for #4909 ? This seemed like an omission, but I'm not sure about further changes.

Anyone you would like to review specifically?

@bmuschko @sambsnyd

Have you considered any alternatives or workarounds?

We could also assign some effort for the scanning phase of a recipe, or when creating a data table row. That seems a bit further removed from how we've traditionally estimated and measured effort though, so not (yet) included here.

[timtebeek]

Draft as I hadn't ran the tests yet, but otherwise ok to merge if you ask me. I'll look at this again with fresh eyes tomorrow.

[bmuschko]

I think it would make sense to override getEstimatedEffortPerOccurrence() in ScanningRecipe and return a value of Duration.ofMinutes(0). Now, that we calculate time savings for ScanningRecipe, "finder" recipes would provide a time saving which probably shouldn't be accounted.