Persistent Item Robust Searching

[Jacki3]

Is your feature request related to a problem? Please describe.
Inventory items require a specific folder structure and naming convention for persistence to work. Currently, we place inventory items into the 'Resources' folder and then into a new folder named 'Items'.

Describe the solution you'd like
It would be ideal if we could simply search for objects of the base item type (they could still be placed in resource folder to make life easier and cleaner).

Additional context
Finding scriptable objects may not be easy as finding components such as Nodes and Orders but still should be doable - see how this is carried out for such items and apply similar logic.