Support for 2D seismic
The SEG-Y import needs to be augmented with code to create the required metadata for 2D seismic (In the TraceCoordinates category, see KnownMetadata.h) and the SEG-Y export needs to be validated (it should work as-is). An additional helper class is needed to do correct lookups in the metadata (similar to the IJKGridDefinition/VDSCoordinateTransformer classes).