Develop (#14)

* fix chronopost

* big refacto

* add cost_collection

* refacto + add surcharge froid

* fix chronopost and streamlit

* fix tests

* update dependencies + minor fix

* update dependencies

* rename basecost protocol to BaseCostCalculator

* extend stef number of bottles to 198

* refacto + rounding

Surcharge froid (#7)

* fix chronopost

* big refacto

* add cost_collection

* refacto + add surcharge froid

* fix chronopost and streamlit

* fix tests

Merge pull request #5 from nicolas-lair/develop

Develop - postal_code feature