Add code implementation for discount codes

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Add an option box for me to checkmark if sales tax should be excluded for the customer, and not charge them sales tax. Or add code like you said somehow.

add option for adding discount codes to products for sitewide discounts to be advertised. Allow code to be customized for percent off and name. Priority: 2 if this is what we doing for sales tax exempts, if not, priority: 3

[mtuttle03]

add option for adding discount codes to products for sitewide discounts to be advertised. Allow code to be customized for percent off and name. Priority: 2 if this is what we doing for sales tax exempts, if not, priority: 3

[AMTuttle02]

Coupon code create & update complete. Remaining Task: Allow users to enter coupons when ordering.

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Display done for entering coupons. Logic & pulling backend data is still required.

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Logic complete on checkout page for discount

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Logic complete on stripe page. Can use total session variable for order confirmation email total.