added module hr_worked_days_from_timesheet

If the information is available, I think it would be clearer to test each "work day" separately.
It took me some time to read this and understand where the two numbers come from.
Now I see they are 5 (2014-01-02) + 7 ( 2014-01-04) and then 11.5 (2014-01-16)

Is this correct, or should I be expecting the work days to be for a day each?