Introduce text progress bar

Example in Rust for reference:
```rust
use std::{io::{self, Write}, thread, time::Duration};

fn main() {
for i in 0..=100 {
let width = 40;
let filled = i * width / 100;
let empty = width - filled;

print!(
"\r[{}{}] {:3}%",
"#".repeat(filled),
" ".repeat(empty),
i
);
io::stdout().flush().unwrap();
thread::sleep(Duration::from_millis(50));
}
println!(); // final newline
}
```

No target file, entry point, or test is named. Search the repository for the relevant output path and compare its needs with the Rust reference; done means a text progress bar is integrated with the intended output and its behavior is verified.

Written by the indexing model from the issue text.