Timestep option

Introduce an option for FSI timesteps, which can be set to 0 if no propagation through the nucleus should be performed (e.g. for events in seabed rock).

assigned to @jschumann

added 3 commits

• c50693d5...e390f69d - 2 commits from branch master
• 9eb93730 - Introduce FSI timestep option in runner

Compare with previous version

enabled an automatic merge when the pipeline for 9eb93730 succeeds

mentioned in commit ab8d04a6

merged