Lapin integration with smol

This crate integrates lapin with smol by using smol's executor inside of lapin for its internal operations and for consumer delegates.

``` use lapinou::*; use lapin::{Connection, ConnectionProperties, Result};

fn main() -> Result<()> { smol::run(async { let addr = std::env::var("AMQPADDR").unwraporelse(|| "amqp://127.0.0.1:5672/%2f".into()); let conn = Connection::connect(&addr, ConnectionProperties::default().withsmol()).await?; // Note the with_smol() here let channel = conn.createchannel().await?;

    // Rest of your program
})

} ```