Identical to the GET form, but accepts a request body that overrides how individual BOM
lines are sourced for the purpose of the check. Nothing is saved to the PCB.

Each entry in part_origins identifies a BOM line by its approved_vendor_list_id (from
GET /api/v3/pcb/{pcb_id}/{pcb_version}/bom) and gives the origin to check it with.
BOM lines that are not listed use the origin stored on the BOM.