graph_builder: Use separate function for labeled arcs
This makes calls shorter by avoiding the need for options, and allows passing any argument that implements Into<Vec> instead of forcing the caller to use b"blah blah".into() themselves
Staging instance, all changes can be removed at any time
This makes calls shorter by avoiding the need for options, and allows passing any argument that implements Into<Vec> instead of forcing the caller to use b"blah blah".into() themselves