/*Default Woocommerce Checkout Fields & properties:
Array of overridable properties:
type – type of field (text, textarea, password, select)
label – label for the input field
placeholder – placeholder for the input
class – class for the input
required – true or false, whether or not the field is require
clear – true or false, applies a clear fix to the field/label
label_class – class for the label element
options – for select boxes, array of options (key => value pairs)
Hook: woocommerce_checkout_fields
Billing
billing_first_name
billing_last_name
billing_company
billing_address_1
billing_address_2
billing_city
billing_postcode
billing_country
billing_state
billing_email
billing_phone
Shipping
shipping_first_name
shipping_last_name
shipping_company
shipping_address_1
shipping_address_2
shipping_city
shipping_postcode
shipping_country
shipping_state
Account
account_username
account_password
account_password-2
Order
order_comments
Billing & Shipping Hook: woocommerce_default_address_fields
country
first_name
last_name
company
address_1
address_2
city
state
postcode
*/