Follow-up of #228. The structure is documented in the website and clarified in precice/precice.github.io#331.

The following tutorials need updates:

• oscillator @uekerman
  • python
  • fmi
• partitioned-heat-conduction
  • fenics: Follow naming convention in partitioned heat conduction - FEniCS #459
  • fenicsx (move from develop to branch) @IshaanDesai
  • nutils @uekerman @IshaanDesai Fix inconsistenies in the Nutils participants of the partitioned-heat-conduction tutorial #496
• partitioned-heat-conduction-complex
  • fenics
• partitioned-heat-conduction-direct @uekerman @Fujikawas
  • nutils
• volume-coupled-diffusion @BenjaminRodenberg
  • fenics Fix structure of volume-coupled-diffusion #489

I would still consider the aste-turbine to be a very special case that is not meant to be extended or repeated in other tutorials.

Please comment regarding which cases you would like to port. No need to port every tutorial at once, but let's try to have a consistent structure until the next release of the tutorials.