Feature Request: Support automatic restart via watchexec or cargo watch

For interactive development, it would be really nice if I could automatically restart my Cursive application using `watchexec` to detect filesystem changes. Unfortunately, this doesn't seem to work -- running a command like

watchexec -r "cargo run --example mines"

runs, but produces no terminal output. FWIW, this approach does seem to work for the `tui-rs` library examples, not sure if this is just down to differences in how the two libraries are structured.