(Vcharset_mojikyo): Deleted.

(Vcharset_mojikyo): Deleted.
(Vcharset_mojikyo_2022_1): Deleted.
(Vcharset_mojikyo_pj_{1..21}): Deleted.
(Qmin_code): New variable in UTF-2000.
(Qmax_code): Likewise.
(Qmother): Likewise.
(Qconversion): Likewise.
(Q94x60): Likewise.
(Qmojikyo): Deleted.
(Qmojikyo_2022_1): Deleted.
(Qmojikyo_pj_{1..22}): Deleted.
(mark_charset): Mark `cs->mother'.
(charset_description): Add description for `mother'.
(make_charset): Rename `ucs_{min|max}' to `{min|max}_code'; add new
arguments `mother' and `conversion'; use `CHARSET_{MIN|MAX}_CODE'
instead of `CHARSET_UCS_{MIN|MAX}'.
(charset_code_point): Moved from char-ucs.h; support `mother' charset
feature.
(range_charset_code_point): use `CHARSET_{MIN|MAX}_CODE'
instead of `CHARSET_UCS_{MIN|MAX}'; delete hard code for
`mojikyo-2022-1'.
(Fmake_charset): Allow 3 and 4 as the value of `dimension' in
UTF-2000; allow 128 and 256 as the value of `chars' in UTF-2000; allow
2 as the value of `graphic' in UTF-2000; add new properties
`min-code', `max-code', `mother', `conversion' in UTF-2000; don't
require `final' in UTF-2000; modify for `make_charset'.
(Fmake_reverse_direction_charset): use `CHARSET_{MIN|MAX}_CODE'
instead of `CHARSET_UCS_{MIN|MAX}'; modify for `make_charset'.
(Fcharset_property): Support `mother', `min-code' and `max-code'.
(Fencode_char): New function.
(syms_of_mule_charset): Add new builtin function `encode-char' in
UTF-2000; add new symbols `min-code', `max-code', `mother',
`conversion' and `94x60'; delete symbols `mojikyo', `mojikyo-2022-1'
and `mojikyo-pj-{1..21}'.
(complex_vars_of_mule_charset): Modify for `make_charset' change;
delete coded-charsets `mojikyo', `mojikyo-2022-1' and
`mojikyo-pj-{1..21}'; delete `DEF_MOJIKYO_PJ'.