Update [BOM Provenance ERD](https://github.com/BlockScience/cats/issues/138) Entity Relationships to reflect BOM output and nested CAT I/O (Order/Invoice) Related: * https://github.com/BlockScience/cats/issues/165 AC: 0. https://github.com/BlockScience/cats/issues/48 1. https://github.com/BlockScience/cats/issues/138 2. Update https://github.com/BlockScience/cats/issues/138 Entity Relationships to reflect BOM output and nested CAT I/O (Order/Invoice)