Added a script to generate fake BoMs for testing purposes.
Added a script to generate fake BoMs for testing purposes.

- Provided by @mdeweerd in #471

xesscorp/KiCost,xesscorp/KiCost,hildogjr/KiCost,hildogjr/KiCost,hildogjr/KiCost,xesscorp/KiCost