tsu - toml encoding and decoding utilities,parse to toml

use example

```rust fn main() { { let cargotomlmutex = tsu::tomlfromstr(r#" [package] name = "toml" version = "0.4.5" authors = ["Alex Crichton alex@alexcrichton.com"]

    [badges]
    travis-ci = { repository = "alexcrichton/toml-rs" }

    [dependencies]
    serde = "1.0"

    [dev-dependencies]
    serde_derive = "1.0"
    serde_json = "1.0"
    "#);

    let package = cargo_toml_mutex.get("package").unwrap();
    let authors = package.get("authors").unwrap();
    println!("{:#?}", &package);
    println!("{:#?}", &authors);

    let badges = cargo_toml_mutex.get("badges").unwrap();
    println!("{:#?}", &badges);

    let dependencies = cargo_toml_mutex.get("dependencies").unwrap();
    println!("{:#?}", &dependencies);

    let dev_dependencies = cargo_toml_mutex.get("dev-dependencies").unwrap();
    println!("{:#?}", &dev_dependencies);
}

{
    use serde_derive::Serialize;
    #[derive(Serialize)]
    struct Human {
        name: String,
        age: u8,
        country: Country,
    }
    #[derive(Serialize)]
    struct Country {
        name: String,
    }
    let user = Human {
        name: "mike".to_string(),
        age: 18,
        country: Country {
            name: "country_name".to_string(),
        },
    };
    let toml = tsu::to_toml_str(&user);
    println!("{}",toml.as_str());
}

} ```