Changes to Create order

added the new optional request property discount_amount

added the new optional request property discount_coupon_id

added the new optional request property discount_wallet_id

added the new optional request property subscription_id

added the new optional request property trustee_type

the request property buyer_id became optional

the request property seller_id became optional

request property auto_settle was restricted to a list of enum values

the request property buyer_id became required

the request property seller_id became required

the auto_settle request property type changed from boolean to integer

added the new optional request property bundle

added the new optional request property template/btn_submit_text

added the new optional request property template/expires_in

added the new optional request property template/hide_cardholder

added the new optional request property template/iframe_title

added the new optional request property template/password_cvv

added the new 0.00 enum value to the request property auto_settle

added the new 1.00 enum value to the request property auto_settle