Unification of Node menu.

I usually use Shift+A to add nodes, if I am used to the menu of geometric nodes, then "material nodes" and "composite nodes" will not be used to. Because the menus of "converter", "math" and "vector" are different in different node editors. If it is more suggested that I use "search" to add nodes, my students will need to spend more energy memorizing the names of nodes, as if there is no classification. I don't know if the developers will work on the unified node menu next.