**What**
- support creating SO with calculated price
- support updating SO for both types of pricing
- update `validateShippingOptionPricesStep` to handle both SO price_types
- add the `validateShippingOptionsForPriceCalculation` method to `FulfillementModule`
- add `canCalculate` and `calculatePrice` to fulfillment provider service service / interface / manual provider
- disable SO pricing edit on Admin if SO price type is calculated
---
CLOSES CMRC-776
d8a92dbb2d