sc: filter: rtf: add method "AddFont"
Create a map font name associated with unique index.
"The \fonttbl control word introduces the font table group.
Unique \fN control words define each font available in the document,
and are used to reference that font throughout the document"..
Signed-off-by: Henry Castro <hcastro@collabora.com>
Change-Id: I028226cb539865f1980f953385c887a3bd4b8e3f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/154905
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Tested-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155260
(cherry picked from commit
81d59f2c125dff57fdfa17b119d6007f25ef500a)