Add manufacturing API,

We use many raw material for manufacturing, each has a batch number

Raw Material #1 : Batch number / expiery
Raw Material #2 : Batch number / expiery
Raw Material #3 : Batch number / expiery
Raw Material #4 : Batch number / expiery

Finished Product : Batch number / expiery.

the finished product batch number is registered to what was used in the raw material for traceability of what was used to create the final product.