[PYBD] Paul Galand & Ancelin Bouchet - Répartition géographique annuelle des accidents de la route

[QwarksDev]

Here's a tree of the changes made for this project: (A for Added, M for Modified)

delta
 |- data
 |   `- A : acc_caracs_grav-{year}.pkl     # Symlinks to pickles for Dataframe of each year
 |- M : delta.py                           # Added 'accidents de la route' in project's tab
 `- pgab_accidents
     |- A : accidents.py                   # Project content (data displaying)
     `- data
         |- A : get_data.py                # Downloads, filters, and generates picklets for Dataframe of each year
         `- A : acc_caracs_grav-{year}.pkl # Generated pickles for Dataframe of each year

[thetos7]

The merge conflicts, incompatibilities with other works and warnings associated with this PR should now be fixed.