reëxport rand at the crate root

[Madoshakalaka]

since some public functions requires rand types,

pub use rand;

at lib.rs

should be a good idea

[mgeisler]

Hi @Madoshakalaka,

Is this considered best practice? I'm not aware of it.

Personally, I dislike pub use very much since it create multiple ways of referring to the same thing, which I find unnecessary complexity. So I would not like for people to do lipsum::rand::rng for example.