Resolve "Add OMP no weight"

Closes #16

See merge request !13

Merge branch '17-adding-new-datasets' of https://gitlab.lis-lab.fr/luc.giffon/bolsonaro into 17-adding-new-datasets

Resolve "Experiment pipeline"

See merge request !16

Merge branch '16-add-omp-no-weight' of https://gitlab.lis-lab.fr/luc.giffon/bolsonaro into 16-add-omp-no-weight

Mistakes have been made

See merge request !14

Resolve "Experiment pipeline"

Closes #12

See merge request !9

Resolve "Correction of multiclass classif"

See merge request !11

Add Paolo's first implementation of this paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2822360/

- Add new results for stage4.

- Add stage4 (results and experiments);
- Do not save model object.

- Add diamonds in experiment scripts and add factorize run_compute_results.sh script;
- Add best params for diamonds dataset.

Add quick working version of diamonds dataset to test that the improvement of OMP are consistent in other regression tasks.