Bug 23429: ilsdi.pl GetRecords documentation does not match output

Bug 23429: ilsdi.pl GetRecords documentation does not match output

Updated contents of Describe for GetRecords to match current behaviour.

To test, ensure ILSDI is configured and then compare the output of:

http://yourserver/cgi-bin/koha/ilsdi.pl?service=Describe&verb=GetRecords

before and after applying the patch. Note that afterwards it includes
things like <onloan> and has removed elements such as <date_due> that no
longer get returned.

https://bugs.koha-community.org/show_bug.cgi?id=23429

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>