Extend FdoIDataReader to provide raw access to current geometry

[waltweltonlair]

The FdoIFeatureReader interfaces provides the following method which gives raw access to the current geometry pointed to by the reader:

FDO_API virtual const FdoByte * GetGeometry(FdoString* propertyName, !FdoInt32 * count) = 0;

For performance reasons the FdoIDataReader interface should provide the same method. Currently with FdoIDataReader, the only way to obtain the geometry is via the following FdoIReader method:

FDO_API virtual FdoByteArray* GetGeometry(FdoString* propertyName) = 0;

which allocates a copy of the data. Callers then have a choice of which method to call, depending on their context.

[gregboone]

Enhancement Request.