(Vcharset_ideograph_daikanwa): New variable.

(Vcharset_ideograph_daikanwa): New variable.
(Vcharset_mojikyo_pj_[1 .. 21]): New variable.
(Qisolated): New variable.
(Qinitial): New variable.
(Qmedial): New variable.
(Qfinal): New variable.
(Qvertical): New variable.
(Qsmall): New variable.
(to_char_code): Use `Qisolated', `Qinitial', `Qmedial', `Qfinal',
`Qvertical' and `Qsmall'.
(Qideograph_daikanwa): New variable.
(Qmojikyo_pj_[1 .. 21]): New variable.
(split_builtin_char): Split ideograph-daikanwa characters.
(syms_of_mule_charset): Add new symbols `isolated', `initial',
`medial', `final', `vertical', `small', `ideograph-daikanwa' and
`mojikyo-pj-[1 .. 21]'.
(complex_vars_of_mule_charset): Add new charset `ideograph_daikanwa'
and `mojikyo-pj-[1 .. 21]'.