yoda: support tables with more than two independent variables #47
Description
Tables with {0,1,2} independent variables are currently exported to YODA Scatter{1,2,3}D objects (respectively). Tables with more than 2 independent variables are currently skipped in the YODA export. It might be possible to use the YODA::Scatter< N > base class to export tables with more than 2 independent variables, although it currently seems to be lacking a Python implementation.