Re-export sqlx::Type as welds::WeldsType

[retorted]

Re-exports sqlx::Type as welds::WeldsType (to match the naming of welds::WeldsModel) and adds it to prelude.

use welds::{prelude::*};

-- #[derive(sqlx::Type)]
++ #[derive(WeldsType)]
pub enum ServerStatus {
    Online,
    Offline,
}