structures: Add structures for Holidays, HolidayNames and HolidayDescriptions.dbc
structures: Add structures for Holidays, HolidayNames and HolidayDescriptions.dbc

jleclanche/pywow,jleclanche/pywow,jleclanche/pywow,jleclanche/pywow,jleclanche/pywow,jleclanche/pywow