Create a comprehensive list of MRML Node properties (model, volumes, segmentations, transforms) that need to be preserved across MRML and SMTK scene
This is related to #301 (closed). See note: #301 (comment 1277778)
We have updated the SlicerSMTK reader/writer to preserve some properties such as names as well as color properties of segments and models. A more comprehensive list of what properties should be preserved across MRML and SMTK scene representations is required for further plan of action.