Polygon to NURBS / solids conversion

 From:  amur (STEFAN)
8552.20 
Hi Alex,

while ZRemesher does indeed mostly creates nice quad meshes i had recently
pinching issues at 3 edges poles when doing a T-Splines conversion with
Fusion360. The solution was then to trim the small pinching areas in MoI
and network the holes.

Regards
Stefan