Offer consistent date/time input

Current Situation

• Date/time input by users supports
  • to type digits without the need to type time separators (":").
  • typ type hh:mm without the need to type seconds that will be automatically completed by zeros.
• This is not consistently supported:
  • see add-order-time-input.png: when adding an order in the Workflows view, the user has to type zeros.
  • see add-order-relative-time-input.png: when adding an order for a relative time, the user has to type time separators.
  • see modify-start-time-date-input.png: when modifying an order's start time, the user has to type zeros.
  • see schedule-update-period-time-input.png: when typing "01:02" for the "period begin" then zeros are automatically completed, however, input is qualified by the GUI being invalid.
  • see update-period-submit-disabled.png: when adding correct time input then sometimes the GUI does not enable the "Submit" button. This preferably happens when the user switches between "repeat" and "single start".

Desired Behavior
In all above situations users should not be forced to type time separators or to type seconds as this should be automatcally completed by the GUI.