Macro doe::read_csv

macro_rules! read_csv {
    ($path:expr) => { ... };
}

read .csv file and Collect into Vec<Vec<String>>

use doe::*;
let s = read_csv!("./data.csv");
assert_eq!(s,vec![vec![format!("a"), format!("b"), format!("c")],vec![format!("1"), format!("2"), format!("3")],vec![format!("10"), format!("20"), format!("30")]]);