fixed error for y lengths for dowels, spacer bar cutouts and cf-supportstrings; simplified left right model of spacer bars via rotation; fixed calculation error of CFrameYShift

fix relative positions of lvCFramePairSpacerBar-s and lvCFramePairSupportCablepair-s; fix some duplicate namings

CFrame: updated layout and dimensions of support cable dowels and spacer bar dowel holes. Missing final dowel dimensions and panoramix test.

CFrame: added support cables and spacer bars; be aware of preliminary values; there has been no visual validation yet