Bring over the calendar selection from 1.7.x (no Rome)

[russorat]

as a query builder
with admin
when i select the time rage for my query
then i would like to be able to select an arbitrary start and end time using a calendar

we will need to ensure the range function of the query uses start and stop time if selected

[121watts]

an option:

https://github.com/Hacker0x01/react-datepicker