Titan aero left hand part fan shroud for d300vs and other deltas

Lowered the shroud 1.5mm, and moved it 3.5mm to forward to clear the rubber sock on the heater block. Made the part more rigid as mine warped in PLA. Added support for cable managment

Bridging examples attached.

Special thanks to FDM_Guru for the original

1.1 uploaded, solid Inspector verified clean.