Use Metrc-compliant POS for Maryland to simplify stock auditing, automate METRC syncing

https://wiki-coast.win/index.php/Metrc-Compliant_POS_for_Maryland:_How_to_Prevent_Compliance_Drift

Use Metrc-compliant POS for Maryland to simplify stock auditing, automate METRC syncing, and give transparent transaction histories for compliance and internal evaluations.