Minimalistic modern infinite terminal progress indicator.

This is based on rustbar crate, which is simple and minimalistic, but i needed another infinite bar animation, hence this crate.

The goal also was to be able to use it as simple as:

```rust use std::{io::Result, thread, time::Duration}; use circle_rs::{Infinite, Progress};

pub fn main() -> Result<()> { println!("\nGoing to poll some stuff."); let mut loader = Infinite::new().tostderr(); loader.setmsg("Polling"); loader.start()?; thread::sleep(Duration::from_secs(2)); loader.stop()?;

Ok(())

}

```