handle binance's errors with more precision

[dizda]

This allows to be more specific when managing errors and take action accordingly.

use binance::errors::ErrorKind as BinanceLibErrorKind;

[...]

Err(err) => {
    println!("Can't put an order!");

    match err.0 {
        BinanceLibErrorKind::BinanceError(code, msg, response) => match code {
            -1013_i16 => println!("Filter failure: LOT_SIZE!"),
            -2010_i16 => println!("Funds insufficient! {}", msg),
            _ => println!("Non-catched code {}: {}", code, msg),
        },
        BinanceLibErrorKind::Msg(msg) => {
            println!("Binancelib error msg: {}", msg)
        }
        _ => println!("Other errors: {}.", err.0),
    };
}

[dizda]

That might introduce a BC-Break though. Maybe better to bump a minor version.

[wisespace-io]

@dizda Thank you again, I updated the README with the example you provided.

[dizda]

Great. Thank you!