Use the new api url
Add functions on the library for order workflow. It misses some functions and tests. They will be commited later.
Add tests for all cart methods. We can now :
- Set a new user
- Create a new cart
- Add/remove items to a cart
Add methods for addresses
Merge branch 'develop' of https://github.com/Modizy/Iceberg-API-PHP
Merge branch 'master' of https://github.com/Modizy/Iceberg-API-PHP