This adds a new `PropertyRNA::name_func` property which is similar to the many
existing functions like `editable`, `get_default`, etc. It allows dynamically
getting a UI name for the property.
This is especially useful for node sockets, because those all have the same
hardcoded name "Default Value" which is not helpful. Since we already have
custom tooltips for sockets, this is mostly not visible to the user anymore. The
exception being menu sockets which draw the property name as title. Instead of
"Default Value", this patch makes it show the correct title.
Pull Request: https://projects.blender.org/blender/blender/pulls/147137
ceca413bcb