FShell::UpdateShellOrientation

Update each [FOrientedFace::Direction](API\Runtime\CADKernel\Core\TOrientedEntity\Direction) according to [FOrientedFace::Entity](API\Runtime\CADKernel\Core\TOrientedEntity\Entity)->[IsBackOriented()](API\Runtime\CADKernel\Core\EHaveStates) flag