tdf#163483: implement export of Math formula's fallback image to PPTX

This was left as a TODO in commit cb890ae43bacd2be24bc74fad2e2e5cce8910995
(oox: export Math objects to PPTX files, 2016-01-15). Now after commit
7cfff4751befd678b3db4b6f16b020d38f4e9c32 (Related: tdf#129061 Avoid formula
import and use fallback for now, 2024-09-11), that relied on the fallback
being present, our exported documents lost the formulas completely on load.
So the fallback export became a necessity.

Change-Id: I52d4ef0400ce72ee10fda10a1131b4ba29ea56be
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/177564
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Jenkins
Signed-off-by: Xisco Fauli <xiscofauli@libreoffice.org>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/177653
(cherry picked from commit e425b6e0d270b1a315dfecc1ec6571bd5c7a6b52)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/177665
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Michael Weghorn <m.weghorn@posteo.de>

0 files changed, 0 insertions, 0 deletions