Can't get tracking transformations from Spectra
Looks like its connecting, initialising and enabling. But all tracking comes back as DISABLED.
was hacked from the PLUS class: https://github.com/PlusToolkit/PlusLib/blob/master/src/PlusDataCollection/NDICAPITracking/vtkPlusNDITracker.cxx
(I tried to include all necessary acknowledgement/copyright at the time. No point denying that its a bit of a messy hack).