Run custom macro for loaded filament

[dragonn]

Since DWC2 we can create custom scripts inside filaments folder.
I think it would be nice option to allow running custom scripts from current loaded filament.
For example we could use M704 P"outer_perimeter.g" when PET-G is loaded - this would run 0:/filaments/PET-G/outer_perimeter.g
I am exploring idea of adjusting settings based on printed future of the print. For example I would to disable pressure advance for printing infill - this would speed up the print when using low extuder jerk. And pressure advance is most time only need for perimeters.