Use a Metrc-compliant POS for Maryland to speed up scanning, tackle break up transactions

https://yenkee-wiki.win/index.php/Metrc-Compliant_POS_for_Maryland:_How_to_Ensure_Smooth_Seed-to-Sale_Reporting

Use a Metrc-compliant POS for Maryland to speed up scanning, take care of split transactions, and keep METRC accuracy for every package bought to certified clients.