Try to fix import in newer expo #490

Author: robinlindhout

src/index.tsx

@@ -1,6 +1,10 @@
 export { default as Calendar } from './Date/Calendar'
 export { default as DatePickerModal } from './Date/DatePickerModal'
-export * from './Date/DatePickerModal'
+export type { 
+  DatePickerModalSingleProps,
+  DatePickerModalMultiProps,
+  DatePickerModalRangeProps
+} from './Date/DatePickerModal'
 export { default as DatePickerModalContent } from './Date/DatePickerModalContent'
 export { default as TimePickerModal } from './Time/TimePickerModal'
 export { default as TimePicker } from './Time/TimePicker'