Sum: Bugfixes, added functions plotT, GetCellularVoronoiDiagram, scPlotT,cellPlotT,GetCVDListFromCellNetworkList

SubContour.plotT, CellNetwork.scPlotT, and CellNetwork.cellPlotT are just same as their non-T counterparts, but with the x and y axes flipped...

CN.GetCellularVoronoiDiagram gets a cvd object that can be used with VFMLite
GetCVDListFromCellNetworkList gets a list of cvd's from a list of cn's