Bug 21347: Escaped fields that should be in addorderiso2709

Bug 21347: Escaped fields that should be in addorderiso2709

Test plan
1/ Stage a MARC file (if you have none staged)
2/ Create a basket in aquisitions
3/ Add an order via staged file
4/ Look at the item information tab, notice there is escaped html
5/ Apply patch
6/ Refresh page, notice it is fixed

Signed-off-by: Sonia <sonia.bouis@univ-lyon3.fr>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>