Add adapter functionality

[fatihG]

Since it was confirmed in the Discord that it is technically possible to modify USB packets being sent, it would be great if this feature was added.

I realize the main feature of this product/tool is to capture controller inputs, but if it is possible to use a Switch controller on an Xbox360 for example, while also capturing inputs that would be pretty neat.
It beats daisy chaining multiple adapters. And would simply be a cheaper solution in the long run. No need to get a chronusmax and a RetroSpy for example.

I am already recommending this project to a few people, but if it had the ability to be used as an adapter I would definitely be more excited to share it with others.