BHV-13447: Added options to moon.Panels.pushPanels

This change allows you to specify an index to change to, once the panels have been added, and optionally not transition, but jump immediately to the target.

(Finally. This was originally created on March 1.)

Enyo-DCO-1.1-Signed-off-by: Blake Stephens <blake.stephens@lge.com>
It seems a bit odd to have a property name prefixed with 'set', even within an options hash - is there another name we can use that still conveys the correct meaning?