Add new svg icon
Add menuitem to Layout tab with all the missing commands
Note: EditPrintArea was not be added because:
It triggers a dialog that is not async at the moment. When tested with
multiple users within the same server it does not work. If the one user
opens it the other one is not able to open it at the same time.
AddPrintArea was not added since it can also be problematic when multiple
users edit the same document.
Signed-off-by: Pedro Pinto Silva <pedro.silva@collabora.com>
Change-Id: I276b6ab08b0f541aba9211d2595786a835d873b8