[Tutorial] UsableActor system in Blueprint with multiplayer support

BTW @Tom, I’ve been working on my inventory system based on your tutorial, and have some improvements.

One bug I noticed though is that the tutorial doesn’t account for deleting InventoryActors when an item is dropped, so you end up with tons of them if you pickup/drop items over and over. Easy fix, though.

I’ll post back later with all the stuff I did.