(Vcharacter_ideographic_radical_table): New variable.

(Vcharacter_ideographic_radical_table): New variable.
(Vcharacter_ideographic_strokes_table): New variable.
(Qideographic_radical): New variable.
(Qideographic_strokes): New variable.
(Fchar_attribute_alist): Use `Vcharacter_ideographic_radical_table'
for `ideographic-radical' attribute; use
`Vcharacter_ideographic_strokes_table' for `ideographic-strokes'
attribute.
(Fget_char_attribute): Likewise.
(Fput_char_attribute): Likewise.
(syms_of_mule_charset): Add new symbol `ideographic-radical' and
`ideographic-strokes'.
(vars_of_mule_charset): Setup `Vcharacter_ideographic_radical_table'
and `Vcharacter_ideographic_strokes_table'.