@hackage sort-by-pinyin2018.4.9

Sort simplified Chinese by PinYin

> compare_chinese_string_by_pinyin "Angel" "天使"
LT
> compare_chinese_string_by_pinyin "恶魔" "天使"
LT
> compare_chinese_string_by_pinyin "恶魔" "大天使"
GT
> map show_pinyin "世界"
[Just "shi4",Just "jie4"]