More Customizable V-Slot Power Plug Cover/Mount

I customized the original OpenSCAD file to make the model even more customizable. :D

You can set the aluminum extrusion size... 20 for 20x0, 30 for 30x0, and 40 for 40x0 extrusions. You can also set whether to mirror the cutout for wires so that you can route them out the other side of the mount.

I've included STLs for both mirrored and unmirrored 3030 extrusions and mirrored 2020.