Scroll to node

[AleAsc27]

Could be very usefull add a method to scroll to a specific node.

[Yoeri-z]

This is a good suggestion, however it is quite complicated because we do not know the size of the nodes in the widget tree before they are layed out. To make this feature work properly (or at least reliable) I first need to finish #3 .

I did make a rudimentary implementation that works in a new branch . It can only scroll down to find objects and lock to them so its quite primitive and not very reliable.