core: proper action for Alarm's active sense

Introduce an action script which redirects to the alarm, so that
"something happen" and user can see that the method was invoked. This
also makes it possible to use this action in selenium tests
8 jobs for erp5_drone_simulator in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

00:53:42

failed ERP5.UnitTest-Master

01:23:12

passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:55

passed SlapOS.Eggs.UnitTest-Master.Python3

00:13:24

passed ERP5.CodingStyleTest-Master

01:06:34

failed ERP5.UnitTest-Master

01:40:31

passed SlapOS.Eggs.UnitTest-Master.Python2

00:11:50

passed SlapOS.Eggs.UnitTest-Master.Python3

00:14:24