MaximumItem, MinimumItem & Sort nodes don't replicate

- Updated the input argument type as IEnumerable<object> so that the
argument is marshaled as 1D collection, and hence it will replicate on
multi-dimension collection.
- On multi dimension collection these methods fail or behave wrong. It
should replicate and return values from each collection.
- Fixed http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-3567