[feature] Improve results lisibility
The lisibility of duel table could be improved if background colors were used (eg green for winning proposition, red for losing). In particular, a Condorcet winner would correspond to a fully green line.
Furthermore, using graphviz, a graph ponderated graph summerizing duels winners could be generated.
An instance of such can be found here: https://www.dg.ens.fr/media/archives/depouillement_T3rmnCz.pdf (page 8).