[Feature][Breaking change] Remove ExportToFiles from IExporter

[workgroupengineering]

BenchmarkDotNet/src/BenchmarkDotNet/Exporters/IExporter.cs

Line 12 in 1fb1015

IEnumerable<string> ExportToFiles(Summary summary, ILogger consoleLogger);

I would like to suggest to remove ExportToFiles from IExporter, because it is not said that the output is a file but it could be, a database, a rest endpoint, a websock, named pipe, etc ...

[workgroupengineering]

What do you think? can i work on it?