Bug 14769: Add preference AuthorityControlledIndicators

Bug 14769: Add preference AuthorityControlledIndicators

Including:

[1] Atomic update to add pref for existing installs
[2] Add new pref to sysprefs.sql for new installs
[3] Add description to authorities preference file.

Test plan:
[1] Run new install or upgrade to add pref.
[2] Check value of pref via System preferences in staff interface.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
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>