Add _IslamicMabimsLunar calendar class for MABIMS crescent visibility criteria

holidays/calendars/__init__.py

@@ -18,7 +18,7 @@
 from holidays.calendars.gregorian import GREGORIAN_CALENDAR
 from holidays.calendars.hebrew import _HebrewLunisolar
 from holidays.calendars.hindu import _CustomHinduHolidays, _HinduLunisolar
-from holidays.calendars.islamic import _CustomIslamicHolidays, _IslamicLunar
+from holidays.calendars.islamic import _CustomIslamicHolidays, _IslamicLunar, _IslamicMabimsLunar
 from holidays.calendars.julian import JULIAN_CALENDAR
 from holidays.calendars.julian_revised import JULIAN_REVISED_CALENDAR
 from holidays.calendars.mongolian import _CustomMongolianHolidays, _MongolianLunisolar