Optimize permanent deletion of Studies with objects not shared copied/moved from/to other Studies

[gunterze]

Use bulk update for marking objects of a Study not shared copied/moved from/to other Studies for deletion:

update location
set status      = 1,
    instance_fk = null
where pk in (select l2_0.pk
             from location l2_0
                      join instance i2_0 on i2_0.pk = l2_0.instance_fk
                      join series s1_0 on s1_0.pk = i2_0.series_fk
             where s1_0.study_fk = ?
               and l2_0.status <> 1
               and l2_0.object_type = 0
               and l2_0.multi_ref is null
               and l2_0.uidmap_fk is null)

to speed-up permanent deletion of Studies with objects not shared copied/moved from/to other Studies.

Related #4443, #4444