title: Datetime sorting is not working in react bootstrap table 2
body: <p>Am using react bootstrap table 2 in my react UI application.
  In datetime column, sorting is enabled but the feature is not working. Am getting the table output value as 2019-12-02T15:46:40.000 and i have formatted to 15:46:40(HH:MM:ss). In Table it is displayed as HH:MM:ss. I see the table supports only sorting in alphabetical format.Is there any way to sort using custom function.</p>
  <p>Appreciate your help.</p>