Price per quantity per slice
This MR introduces a second way of calculating the base price of a resource using "Base Price Quantity Step".
Currently, for a resource, we could define on a Supply Line "Quantity Steps", and set a price for each of these steps. Then, depending on the quantity of the resource, the price of the unique matching step would apply.
For exemple :
|Quantity Step Range||Price for the step|
|0 -> 10||10€|
|11 -> 20||9€|
|21 -> inf||8€|
With the current method, for an Order of 15 products, the 2 range "11 -> 20" would apply, the unit price for the products would be 9€, and the total price would be 15*9 = 135€.
The new method of calculating would apply the Price for the step to, and only to, all items of this step. Which means, for an order of 15 products, the 10 first products would have a unit price of 10€, and the 5 next products would have a unit price of 9€, which makes in the end a total price of 145€, and a base price of 9.66€.