function getCLDRCalendarName(sCalendarType) {
		if (!sCalendarType) {
			sCalendarType = Formatting.getCalendarType();
		}
		return "ca-" + sCalendarType.toLowerCase();
	}
Returns the corresponding calendar name in CLDR of the given calendar type, or the calendar type
from the configuration, in case sCalendarType is undefined.

@param {module:sap/base/i18n/date/CalendarType} sCalendarType
  The type defined in {@link module:sap/base/i18n/date/CalendarType}.
@returns {string} calendar name
@private