fdo#36668 - Add image captions above the image

[Bartosz]

Hi.
I would like to start work on fdo#36668 Possibility to add image captions above the image.

Writer allows captions of tables above or below the table.
If someone want to add a caption to an image, the option "position" is always "Below".
More info (with screenshots) is available at:
https://bugs.freedesktop.org/show_bug.cgi?id=36668

Do you know where image insertion (especially position) is implemented?
Where should I start looking for?

Thanks in advance
Bartosz