Function covid19db::dateutil::dateutc_to_ymd

pub fn dateutc_to_ymd(dateutc: &Date<Utc>) -> (i32, u32, u32)

Convert a Date<Utc> to (year, month, day)

use covid19db::dateutil::*;
use chrono::prelude::*;
use julianday::JulianDay;

assert_eq!(dateutc_to_ymd(&Utc.ymd(2015, 3, 14)), (2015, 3, 14));