Improve Timepicker user experience

[jbcbezerra]

The current timepicker in p-calendar is not usable. If i want to set a specific minute, i would have to click the arrow buttons until i get it, instead of just having an input field where i can set my desired minutes.
This issue was already opened multiple time but never have there be any work to it, so i am opening it here again.
primefaces/primeng#1883

Is there any plan to improve it ?