Bnd_Box now keeps calculating of finite part of bounding box after specifying it to be Open in some direction.
The finite part can be retrieved using new method Bnd_Box::FinitePart().
Prs3d::GetDeflection() now uses Bnd_Box::FinitePart() when applying relative deflection.
Draw Harness command bounding has been extended with option -finite returing a finite part of AABB.
