Bug 14769: Biblio indicators based on authority's thesaurus code

Bug 14769: Biblio indicators based on authority's thesaurus code

Original patch from Janusz Kaczmarek on November 24, 2017.
Amended by Marcel de Rooy on February 6, 2018.
Code moved from AuthoritiesMarc.pm to ControlledIndicators.pm.

Special attention has been paid to the proper application of 008/11
while controlling 6XX in MARC 21, specially if 008/11 =~ /[rsz]/
(and if it is 'z' and 040 $f is defined).

Test plan:
See next patch.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
The construction $thes_mapping{ $code } // $code // '4' will still get
some attention on a follow-up.
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>