Bug 38109: Sort patron category types before display

Bug 38109: Sort patron category types before display

To test
1 - Patrons -> New patron -> {any category}
2 - Find the category dropdown
3 - Note the order of categories types
4 - Reload the page
5 - Note a new order
6 - Apply patch
7 - Refresh page, category types now ordered (by code)
8 - Refresh again, no change!

Signed-off-by: Roman Dolny <roman.dolny@jezuici.pl>
Signed-off-by: Pedro Amorim <pedro.amorim@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>