Function korean_nums::hangeul_from_string

pub fn hangeul_from_string(input: String, is_sino: bool) -> String

Parses an int String into a Hangeul String.

Args:
*input* - A String that can be parsed to an {integer}.
*is_sino* - true  => parse as a Sino-Korean number.
            false => parse as a Pure-Korean number.