Modified DlgPrimitives.cpp to allow auto adding the newly created object to active Std_Part.
Works with: box, cylinder, sphere, cone, torus, tube, primitives.
for Drawing, Image, Inspection, Mesh, MeshPart, Part, Path, Points, Raytracing, ReverseEngineering, Spreadsheet, Start, Surface, Web
TODO: fix several -Woverflow in area