Bug 13592: Add an option to charge for any hold placed

Bug 13592: Add an option to charge for any hold placed

Currently the fee is applied on if all items for the record are issued
and at least one hold already exists on the record.
This patch does not give a complete answer to the problem (see
discussion on bug 13592 for the other user's expectations).
It only adds the ability to charge for any hold placed regardless of the
conditions.

Test plan:
1) Execute the updatedb entry to insert the new pref
2) Confirm that the behavior is the same as before applying this patch
3) Change the HoldFeeMode pref to 'always'
4) Note that the fee is applied for any hold placed

Signed-off-by: Sally Healey <sally.healey@cheshiresharedservices.gov.uk>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>