[d/tointegrate/geometry] : added new potentially GC less implementation of half-edge datastructure, untested but compiles
[d/tointegrate/geometry] : added new potentially GC less implementation of half-edge datastructure, untested but compiles

PtrMan/WhiteSphereEngine,PtrMan/WhiteSphereEngine,PtrMan/WhiteSphereEngine,PtrMan/WhiteSphereEngine