Added the MicroMasters orders for legacy edx.org courses
Added a few fields - order_reference_number, courserun_readable_id, receipt_bill_to_address_state, receipt_bill_to_address_country, receipt_payment_method, and discount
Removed some of the joins to intermediate to simplify the mart. The query for xPro orders should probably be moved to mitxpro__ecommerce_allorders but that is out of scope for this PR.
What are the relevant tickets?
Part of https://github.com/mitodl/hq/issues/4532
Description (What does it do?)
A few changes to martscombinedorders
How can this be tested?
dbt build --select +intbootcampsecommerce_order dbt build --select intmitxproecommerce_allorders dbt build --select intmicromastersorders dbt build --select martscombinedorders