timeline_analysis.py does not contain an Analysis class

[damian0604]

In the analysis folder, there is a file timeline_analysis.py (which contains a function that is imported by VAR_analysis.py, but also by the timeline exporter (in the importers_exporters collection. All of that works fine, but the function in timeline_analysis.py is not implemented as Analysis class, which makes that it cannot be called directly from myinca.analysis.
That's kind of confusing, because one would assume so.

Maybe just renaming the file is enough...