Portal 1 Redirection Cube addon

This replaces the portal 2 redirection cube with a version closer to the style of portal 1, i made this because i didn't really like the portal 1 styled redirection cube i was using and wanted one closer to reepblues original one, so one day i just decided to do that.

model by reepblue, rusted cube texture was taken from catgroove62913's portal 1 cube replacement, ported by me :)