Function hangeul::is_jungseong

pub fn is_jungseong(code: u32) -> bool

Checks if a char is a middle/vowel jamo, or jungseong (중성).

use hangeul::is_jungseong; //is_vowel

assert_eq!(false, is_jungseong('ㅉ' as u32));
assert_eq!(true, is_jungseong('ㅏ' as u32));
assert_eq!(false, is_jungseong('ㄵ' as u32));