Objective: Make sure there will be no tax charged to verified merchant, since they already submitted their business license.

Coding Overview: (Please note: I left "echo" in my codes for future debug/update, feel free to delete them)

-Added a ?customers_isWholesale? field in table [customers] to memorize whether the customer is a verified merchant.
-Added a function in [general.php]
-Altered code in [order.php] to calculate tax


installations instructions here.</p>

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