Bug 33581: Disable sample holiday if libraries are not selected

Bug 33581: Disable sample holiday if libraries are not selected

If libraries are not selected we should not try to insert holidays, or
the installer will fail with a missing FK.

This patch simply disable and uncheck the checkbox when libraries are
not going to be inserted.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 1137511e63e9b6fd0b1d52f34fb35b0ffb8dc363)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>