Prefer start handler on top for same hour selection

[cedvdb]

When the start handler and the end handler are on top of each other, the end handler is show, but the start handler is the one that actually moves.

Imo, the start handler should be shown because it is selecting a whole day range, and the icon for start would be more appropriate

[mohit-chauhan-mi]

@cedvdb You may use drawInitHandlerOnTop <- TimePicker bool flag to achieve this with latest version.