rustbar

Set of progressbars for rust

```rust extern crate rustbar;

use std::thread::sleep_ms;

use rustbar::rustbars::ProgressBar;

pub fn main(){

let mut pbar = rustbar::rustbars::PercentageProgressBar::new();
println!("\nPercentageProgressBar demo");
for idx in 0..101 {
    pbar.set_value(idx);
    pbar.set_msg("Calculating...");
    pbar.render().unwrap();
    sleep_ms(50);
}

println!("\nInifiniteProgressBar demo");
let mut infbar  = rustbar::rustbars::InfiniteProgressBar::new().to_stderr();
for _ in 0..101 {
    infbar.set_msg("Thinking...");
    infbar.render().unwrap();
    sleep_ms(50);
}

}

```

See src/bin/demo.rs for usage example.