用法：
1.var pickerView = MOFSAddressPickerView();
2.pickerView.mofsDelegate = self;
显示地址调用：
pickerView.show();
Delegate：
func selectedAddress(province: String, city: String, area: String, id: String) {
}
func selectedAddressAtIndex(province_index: Int, city_index: Int, area_index: Int) {
}