[Suggestion] Redstone signal on successful transaction

[nickjackson-ff]

Suggested feature: Vending Block sends a redstone signal to adjacent blocks when a successful transaction takes place.

The redstone signal strength could vary to indicate the remaining storage level of the Vending Block, or to represent the mode of the transaction (two-way, item accepted only, item given only).

This will allow for many simple automation opportunities.

[Darkforge317]

I was just about to make a suggestion for this! Good thing I checked first!

Honestly, I'd add this myself if I could figure out how to build the project with dependencies... 😅
Sorry about that.

The reason why I want this is because it would be useful to make a "entry fee" for a building.

Example:
I have a mob grinder on a server I play on, if I decided to charge 5 iron ingots per entry, they could make the transaction through the vending block, and it would output power that I could redirect towards a piston door circuit or an iron door.