Add interface for convergence tolerance criterions (and maybe rename internal options)
Currently we have 4 options for convergence criterions:
The first two are for the deterministic solution, the last two for the steady state.
We should add a preprocessor interface to these options.
Also, it would make sense to rename them for more homogeneity. I suggest the following renaming scheme:
- options_.dynatol.f => options_.simul_tolf
- options_.dynatol.x => options_.simul_tolx
- options_.solve_tolf => options_.steady_tolf
- options_.solve_tolx => options_.steady_tolx