Bug 10762: Change the size of barcodes in label creator

Bug 10762: Change the size of barcodes in label creator

Test plan:
1)Home > Tools > Label creator > Manage Layout or New Layout
2)Make a new layout or edit an existing one
3)Notice the 2 new fields "Barcode width/Barcode height"
4)Save it like this
5)Create a batch of barcode and export if in PDF
6)Notice the size of barcode
7)Go back to your existing layout
8)Enter some values (Barcode width: 1.6 / Barcode height: 0.04), save
9)Take back your batch of barcode and export it in PDF
10)The barcode should be 2x bigger

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Johanna Miettunen <johanna.miettunen@haaga-helia.fi>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>