Bug 17836: (ILSDI) Make GetPatronInfo fill 'charges' correctly

Bug 17836: (ILSDI) Make GetPatronInfo fill 'charges' correctly

This trivial fix corrects a typo on C4/ILSDI/Services.pm.
It was hidden because the tests for ILSDI only cover the 'attributes'
portion of the response. I added regression tests for this.

To test:
- Have the regression test patch applied
- Run:
  $ prove t/db_dependent/ILSDI_Services.t
=> FAIL: Tests fail because 'charges' is always set to 1
- Apply the patch
- Run:
  $ prove t/db_dependent/ILSDI_Services.t
=> SUCCESS: Tests pass
- Sign off :-D

Sponsored-by: ByWater Solutions
Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>