8e499caded
This converts the public `uiLayoutColumnWithHeading` function to an object oriented API (an `uiLayout::column` overloaded version), matching the python API. Like the original `uiLayout::column`, this overloaded version now also returns an `uiLayout` reference instead of a pointer. New calls to this method should use references too. Part of: #117604 Pull Request: https://projects.blender.org/blender/blender/pulls/138056