[Feat]: GeekQuery Derive Macro

[GeekMasher]

What new feature are you looking for / expect?

A feature that I want to build versus doing the following:

let results = Users::select()
    .join(Images::table())
    .columns(vec!["Users.id", "Users.username", "Images.url"])
    .build()?;

Something like this would be amazing:

// Users & Images structs

#[derive(GeekQuery)]
struct UserImages {
    #[column("Users.id")]
    user: i32,

    #[column("Users.username")]
    username: String,

    #[column("Images.url")]
    image: String
}

Expectations

Nice to have