Allow user to change date/time formats

[SamuelSVD]

The app should allow a user to specify how dates, times, and datetimes should be displayed all around the app

For datagridview:
https://social.msdn.microsoft.com/Forums/en-US/2055d187-1d71-4771-8113-d590f62731b6/datagridviewcolumn-display-datetime-with-seconds-milliseconds-?forum=winforms

[SamuelSVD]

This seems to be quite a problem since there's no easy way to tell that the returned data type is Date only vs DateTime...