Fixes BHV-14905

## Issue
SimpleIntegerPicker is unable to scroll to the selected value when the drawer is closed because hidden controls have no dimensions. Property changes aren't coordinately effectively between IntegerPicker and ExpandableIntegerPicker

## Fix
Ensure the right value is scrolled to when the picker is shown
Rework the coordination of value changes between IntegerPicker and ExpandableIntegerPicker

Enyo-DCO-1.1-Signed-off-by: Ryan Duffy (ryan.duffy@lge.com)