[charset] change some single char to lr/ud
[charset] add heng/shu info into left_1_right_2 pattern chars
[charset] do not split single char h_mian into to part
[charset] consider z_sigong as a splitable partial
[charset] add heng/shu/wei info into left_2_right_1 pattern
[charset] add heng/shu/wei info into left_2_right_2 pattern chars