Bug 17560: Hold fee placement at point of checkout

Bug 17560: Hold fee placement at point of checkout

Currently, Koha charges all patrons a hold fee in all circumstances, if
a hold fee is applicable to their patron category.
This is immediately applied at point of request.
However, it would be useful to let patrons make requests without a
charge
being incurred until they physically have the item in their hands and
checked out to their cards.

The hold fee will only be added to the account  as soon as the item is
checked out to the requesting patron.
With this scenario, we will be certain that patrons have the correct
item, and they are happy with what has been supplied.
It also means that patrons can place holds via the OPAC without reaching
the usage limit that has been selected.

Test plan:
0/ All the following steps must be done with a patron using a patron category with a hold fee
1/ Make sure that the existing options for HoldFeeMode work as before
2/ Select the third option "any time a hold is collected"
3/ Place a hold on an item
4/ Note that the patron has not been charged
5/ Check this item from the staff interface
6/ Note that the patron has been charged
7/ Place another hold
8/ Use the self checkout feature at the OPAC for the checkin
9/ Note that the patron has been charged and a message is displayed to
inform about the fee.

Sponsored-by: Cheshire Libraries
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>