Prevent calendar open on input click

[ftmoose]

Is your feature request related to a problem? Please describe.
I would like the option to prevent the calendar from opening when the input is clicked. Given that there is a preventOpenOnFocus it only logical for this prop to be available. Personally I would think the preventOpenOnFocus would also prevent the calendar from opening when the input is clicked, but with respect to existing code I think a new prop should be added.

Describe the solution you'd like
Add a prop to the DatePicker component that disables the opening of the calendar when the input is clicked.

Describe alternatives you've considered
Having the preventOpenOnFocus prop also prevent the calendar from opening on input click. As noted above, I don't think this is a good idea wrt existing behaviour.