fixed autoInvoice initializing wrong order and wrong invoice number
- added abstract UniggardinCarrierClient class
- added core tracking number fetching functionality
revert
Revert "revert"

This reverts commit 1b754fd3be63c0bf88ededc344bdbf3c3e83e769.
- added shipping fee to Economic
Merge branch 'master' of https://github.com/GrigorFTW/Prestashop-UNIG
- red list processor and carrier client modified so they work with carrier chains