Add getter for the timeout multiplier
Add getter for the timeout multiplier

In some cases the acceptance tests have to explicitly wait for something
to happen without using the "find" method from the actor; in those cases
the timeout multiplier needs to be taken into account too, so the test
cases must be able to retrieve it from the actor.

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,nextcloud/server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,nextcloud/server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,michaelletzgus/nextcloud-server,nextcloud/server,nextcloud/server