Add shell support

[dave-sabol]

Love what I've seen so far.

A lot of the systems that i work on require sending data to the system over UART during testing / development to trigger different actions. Adding being able to send ASCII data to the device would be awesome

[mafaneh]

Thanks for the feedback! This is a great idea and something I've been considering. Right now, LogScope is read-only by design, but interactive send/receive is on the roadmap. I'm evaluating two approaches: a simple text input field for sending commands, and a full terminal mode. I'll keep this issue open to track it.