Vuo editor refresh nodes on demand

Feature Requests
,
1

Currently we need to restart vuo editor to refresh node library- such as for subcompositions or new nodes in library.

It would be great if there could be a library refresh built into vuo, either through a watcher or menu item, without the need to restart vuo.

2

I think this is the same as Automatically reload modified nodes? Tentatively merging.