Feature: Plugin actions for nansen.App - improve integration #64
Description
Session/Object methods can update session objects, but sometimes it might be necessary to update more globally, for example if we want to update a MetaTable.
There is undocumented functionality for adding "tool" plugins to the nansen.App main menu, but theyr currently do not take any input arguments.
Maybe they should have a standard callback signature, like fcn(src, evt), where src is the nansen.App and evt is the menu event data