need inventory supply tree type

[Jbutler-helpful]

• generate supply trees didn't show the difference between Inventory Items and supply
  • need inventory supply tree type
  • Supply trees don’t make visual distinction between “inventory” items and “supply” items

[Jbutler-helpful]

@devhawk when you have a moment can you attach the most resent output .json file here so @timr11 can finding it when he gets time to work on this

[devhawk]

I added it to the PR: https://github.com/helpfulengineering/project-data-platform/pull/57#issuecomment-1707357989

[Jbutler-helpful]

@timr11 can you run a test with this code doing a visualization to see how it displays inventory vs suppled items.