Added two controllers for two other graphs

See merge request !5

mathieu-chouchou a écrit jan. 06, 2020 et florian-boubou a validé jan. 06, 2020

SalesByRegion, calculates sales grouped by regions
SalesByGranularity, calculates sales on a interval with a granularity

Clean fixture + added some more filter on data

See merge request !4

fix de data fixture pour ajouter toute les données

See merge request !3

ajout du diagramme circulaire(non react)

See merge request !2

(which shouldn't be here at all)