Purpose
=======
More flexibility is useful when using the _attendance_intervals method (resource.calendar) in other modules when inheriting resource.calendar
Specification
=============
The commit adds a `domain` parameter to the _attendance_intervals method in resource.calendar, allowing
to better control attendances from which to compute intervals.
+ small refactoring: extraction of duplicated code in method
lul-odoo
5a9b8a41b6