Generalize flux solver stop criteria to include FixedIterations

[glwagner]

This PR adds the feature to fix the number of iterations used in the flux solver. cc @wsmoses

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 51 lines in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (10d72f5) to head (e91c028).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...s/InterfaceComputations/compute_interface_state.jl	0.00%	45 Missing ⚠️
...Computations/coefficient_based_turbulent_fluxes.jl	0.00%	3 Missing ⚠️
...Computations/similarity_theory_turbulent_fluxes.jl	0.00%	3 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #350   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files         35      36    +1     
  Lines       2284    2291    +7     
=====================================
- Misses      2284    2291    +7     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[simone-silvestri]

wouldn't this be achieved by tolerance=0, maxiter=fixed_iteration_number?

[simone-silvestri]

Is this required for an ulterior motive?