Road gui_type
Split from #41990: Add "gui_type" for road ruleset sections. Use that information instead of relying on "compat_special" on the gui.
Main difference between master and S3_1 patches are that the latter does the migration from 3.0 rules.
Split from #41990: Add "gui_type" for road ruleset sections. Use that information instead of relying on "compat_special" on the gui.