xournal: initial formula

Xournal is an application for notetaking, sketching, keeping a journal using a stylus.
It is similar to Microsoft Windows Journal or to other alternatives such as Jarnal, Gournal, and NoteLab.

In addition Xournal is a great tool for PDF editting, especially form filling.

Closes #25104.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>