Illithid Mindflayer (fixed)

PollyGrimm's mindlfayer model has some weird internal geometries in the base that cause the bottom to print partially hollow (at least when using Cura). That might have been intentional, but I removed those geometries in this remix because I couldn't get that version to adhere well to my printbed or rafts. With a solid base this finally printed without issues for me.

External geometries are exactly the same except for a slight modification to the very bottom of the robe on the back where some of the surfaces were crossing each other.