Migrate to granular character control.

[Robpol86]

Migrate from this:

CHAR_CORNER_LOWER_LEFT
CHAR_CORNER_LOWER_RIGHT
CHAR_CORNER_UPPER_LEFT
CHAR_CORNER_UPPER_RIGHT
CHAR_HORIZONTAL
CHAR_INTERSECT_BOTTOM
CHAR_INTERSECT_CENTER
CHAR_INTERSECT_LEFT
CHAR_INTERSECT_RIGHT
CHAR_INTERSECT_TOP
CHAR_VERTICAL

To this:

CHAR_FOOTER_INNER_HORIZONTAL
CHAR_FOOTER_INNER_INTERSECT
CHAR_FOOTER_INNER_VERTICAL
CHAR_FOOTER_OUTER_LEFT_INTERSECT
CHAR_FOOTER_OUTER_LEFT_VERTICAL
CHAR_FOOTER_OUTER_RIGHT_INTERSECT
CHAR_FOOTER_OUTER_RIGHT_VERTICAL
CHAR_HEADER_INNER_HORIZONTAL
CHAR_HEADER_INNER_INTERSECT
CHAR_HEADER_INNER_VERTICAL
CHAR_HEADER_OUTER_LEFT_INTERSECT
CHAR_HEADER_OUTER_LEFT_VERTICAL
CHAR_HEADER_OUTER_RIGHT_INTERSECT
CHAR_HEADER_OUTER_RIGHT_VERTICAL
CHAR_INNER_HORIZONTAL
CHAR_INNER_INTERSECT
CHAR_INNER_VERTICAL
CHAR_OUTER_BOTTOM_HORIZONTAL
CHAR_OUTER_BOTTOM_INTERSECT
CHAR_OUTER_BOTTOM_LEFT
CHAR_OUTER_BOTTOM_RIGHT
CHAR_OUTER_LEFT_INTERSECT
CHAR_OUTER_LEFT_VERTICAL
CHAR_OUTER_RIGHT_INTERSECT
CHAR_OUTER_RIGHT_VERTICAL
CHAR_OUTER_TOP_HORIZONTAL
CHAR_OUTER_TOP_INTERSECT
CHAR_OUTER_TOP_LEFT
CHAR_OUTER_TOP_RIGHT