Place reports in module build directories

[manuelprinz]

In projects with more than one module the current defaults generate a report for each module but place both in the same directory. They are only differentiated by their creation timestamp. I think it would be create to put them in the respective report sub-directory, e.g. build/reports/tests/{TaskName}/, maybe even in a junit-insights sub-directory. (I know that this is easily doable by setting de.adesso.junitinsights.reportpath accordingly, but also think that this should be the default.)

Alternatively, it would be helpful to include the task name in the file name to be able relate the reports to the module they belong.