[mod] Support direct drive (nema17 & nema14).

[DisDis]

I found a good mod for ERCF. It would be great if it was added to the mods folder. https://www.printables.com/model/1037669-ercf2-direct-drive-mount-mod-nema17nema14

"This mod upgrades the ERCF V2 to direct drive, replacing the original motor with a NEMA17. Direct drive improves torque and control, allowing for faster, more reliable filament loading and unloading compared to the original setup. This results in smoother multi-material transitions and better handling of challenging filaments."