Provide the directory to specify where to find the calendar spec

[wilsonfreitas]

Where to find the calendar spec? The directory should be provided, or the path should be passed together with the calendar spec name, but the calendar's name wouldn't have the path.

cal = Calendar('/path/to/calendar/spec/Test')
cal.name
# Test

or specify the directory explicitly

cal = Calendar('Test', repository='/path/to/calendar/spec/')

or lastly a singleton to hold the settings.

bizdays.calendar_settings(repository='/path/to/calendar/spec/')

[wilsonfreitas]

After a second though I realized that Calendar shouldn't read the specification file. It should receive a list of dates and a new class, an extension of Calendar should handle that. I am changing this issue into a BUG, instead of an enhancement.

[wilsonfreitas]

Done d5c74aa0807dfe535dfb70e7cb00c872da6f4437 Now bizdays has 2 classes Calendar, which receives a list of holidays and CalendarSpec which handles with tha calendar specification file.