Add an event flag for torah readings

[chabad360]

Would it be possible to have an event flag that covers days the torah is read? As far as I can tell, there is no particular way to filter for that.

[mjradwin]

This is a good suggestion. It's not terribly difficult, but it is a bit tedious to implement.

Do you want to try to implement it and send a pull request?

Beyond adding a new constant to the HolidayFlags in event/event.go, most (all?) of the work will be editing hebcal/holidays.go