BMG-X2 Empiricus BLTouch shroud and thicker bridge.

Modification to the railcore shroud setup by Empiricus, the bltouch mount on the rear won't work for my printer, and I am mounting it using the stepper motor mounts, so these files are a thicker bridge to space the ducts properly from the nozzles, and the left shroud is modified to fit a bltouch at the right height from the nozzle tip.