This pr aim to improve the pdf of the expense report. we have changed the design
of the header of the report, the table and also added an annex with the
different attachments.
For the attachments, when it's a pdf it's simply merge to the actual pdf but
when it's an image we use a new template to display the name of the expense
link to that image.
closesodoo/odoo#133611
Task: 3443413
Signed-off-by: Olivier Colson (oco) <oco@odoo.com>