GUI: fixed parametrization for pyramids real space 3D model

This resolves #266 (closed) . The new shapes for Pyramid2 and CantellatedCube are still required ( #269 )

added 3DView GUI labels

requested review from @j.wuttke

assigned to @m.svechnikov

changed milestone to %21 GUI fixes

approved this merge request

ok

merged

mentioned in commit d7a5f6b1