Include "character.h".

Include "character.h".
(x_encode_char): New argument CHARSET.  Caller changed.
(x_get_char_face_and_encoding): Call ENCODE_CHAR instead of
SPLIT_CHAR.
(x_get_glyph_face_and_encoding): Likewise.
(x_produce_glyphs): Don't check Vnonascii_translation_table Call
CHAR_WIDTH instead of CHARSET_WIDTH.
(XTread_socket): Adjusted for the new code-conversion API.
(x_new_font): Adjusted for the change of FS_LOAD_FONT.
(x_load_font): Adjusted for the change of struct font.