Reaffect routes Show, create routes List for Article and Supplier

- Show to display One selected Article/Supplier
- List to display all Articles/Suppliers
- Adding glyphicon class to twig templates
Add number type to article forms

- Numbers fields are type 3 decimals
- Price field is type money
Replacement of routes

The "show" and "list" routes before add/delete route create 'get' exception
Adding the deleteAction method to Article and Supplier

This is more a soft delete than a real deletion
The "active" field turn to "FALSE"

And adding delete buttons
Change of display

__toString method return _abbr_ field