[WIP] Feature/rans problem
I have continued the work done here on a separate branch freeflow/rans_problem_redevelopment. If I didn't ruin any of the stuff @kweis already did here, we can swith the branch linked to this MR.
- RansNI (other than 0-eq) do not converge. There seems to be an index issue. These did not converge before either, just weren't tested. If we test everything, this would introduce 20 total rans tests, but if we only test for compilation, then we get issues like this.
- RansNC and RansNCNI tests fail. They shouldn't.
- The bad index hack to include one eq and two eq variables in each model is a bad hack. They're set at -1.