Added generic item; plugins can use these to create custom deployables and consumables
* Deployable mode can be server configured: show/hide blueprint vm, guide primitive shape with pos/rot/scale offset
* Consumable mode will trigger a hookable consume action
* Custom item inventory actions (action name, icon, tooltip and disabled status - greyed out)
* https://files.facepunch.com/raul/2026/November/11_19-29-ZanyGangesdolphin.mp4