Follow up on nodes that create new columns should offer the option to either replace existing or create new column with the result

[koettert]

Nodes that should be converted once we can handle column appending backward compatible are:

• Calculation
  • Area :white_check_mark:
  • Bounding box :white_check_mark:
  • Convex Hull :white_check_mark:
  • Length :white_check_mark:
  • Coordinates (multiple columns)
  • Bounds (multiple columns)
• Conversion
  • GeoJSON to Geometry
  • WKT to Geometry
  • Geometry to GeoJSON
  • Geometry to Lat/Lon (multiple column)
  • Lat/Lon to Geometry (multiple column)