2.3.0 Exit callback, fixing bugs

• It is now possible for integer AnalogMenuItems to get the current value including offset using getIntValueIncludingOffset
• The menu manager observer is now told when a submenu is exited for another menu.
• List items now work better with a rotary encoder and selection is more reliable
• More edge cases around editable large number editing
• List response now implemented so that embedCONTROL UI can now tell the remote that a list item was selected.