Add action navigateViewGroup to switch to a tab

[vusters]

Problem: Today the only way to switch to a ViewGroup's tab is using navigateScreen, but it will add a new ViewGroup to the view stack, even if you are already inside it.
The Ask: From within a ViewGroup's View (BottomNav, Sidebar,..), we should expose an action navigateViewGroup with a required param viewIndex.
If we are within a View within a ViewGroup, this will swich the View to tthe new index. It does nothing if not within a ViewGroup.

Look at RateAppAction to see the latest way to build an Action

[vinothvino42]

PR - #860

[vinothvino42]

@vusters Can you check the new PR - #953