Support "simulated" item processing

Support simulating an item receive - allows for players to test item/group settings without waiting for an actual receive, and eases development without pasting lines into a sample log.

• Do not increment the actual item/group received count
• Pass simulate flag (meta?) through entire processing chain
• Add as a bot command and console command (possible first implementation of a ConsoleInputAdapter) - responses return to the simulation channel in all active output adapters