Placeholder functions
Setters + wc_create_order + wc_update_order for #4169
Set correct post type
woocommerce_order_add_fee
static WC_Tax class - no need for a constructor in this
When setting totals, if not set get the data from the product
Also use qty
Fire action when adding product
Calculate tax and totals methods
Tax class fixes + notices
Cleaned up ajax tax calc function
Notices
Update template file to exit if accessed directly

Noticed this missing, wasn't sure if it was intentional but thought it
best be added.
changed the address format in plain text emails
moved the wc_ship_to_billing_address_only() function to wc-order-functions.php
adding brackets around if statement
Use a transaction during checkout's order creation method to ensure all data gets set

Closes #5368
Merge branch 'feature-wc-create-order'
Merge pull request #5690 from BFTrick/parenthesis

Adding Brackets Around if Statement
Merge pull request #5688 from claudiosmweb/5565-fix-address-format-in-plain-text-emails

Change the address format in plain text emails for new lines