Hiding node groups from menu and search results

When we create complex shaders in Blender, consisting of a large number of node groups, the menu for adding new nodes to the material gets clogged up very quickly. In a long list of node groups, it becomes difficult to find the one we need, and even a search does not always save the day. The list of node groups in the menu can be reduced by hiding unnecessary node group names from it.

Read more: https://b3d.interplanety.org/en/hiding-node-groups-from-menu-and-search-results/