Update PrintPoints gh visualization component

[ioannaMitropoulou]

Depends on #143

Update the gh visualization component of the printpoints to reflect the changes from #143

Also, add sliders that enable easier navigation through PrintPoints: one slider that goes through layers, and one slider that goes through the printpoints of each layer

Add a visualization option of the path types that each ppt belongs to, using different colors (the same as in the slicer gh visualization component #141)

Finally, add an option to load a reduced number of PrintPoint attributes, to make the process faster in the cases where we have a large number of printpoints and we don't need to visualize all attributes