Return a list of the supported GDAL raster formats.

def supportedGdalRasterFormats(cls, sqlAlchemyEngineOrSession):
        """
        Return a list of the supported GDAL raster formats.
        """
        if isinstance(sqlAlchemyEngineOrSession, Engine):
            # Create sqlalchemy session
            sessionMaker = sessionmaker(bind=sqlAlchemyEngineOrSession)
            session = sessionMaker()
        elif isinstance(sqlAlchemyEngineOrSession, Session):
            session = sqlAlchemyEngineOrSession

        # Execute statement
        statement = 'SELECT * FROM st_gdaldrivers() ORDER BY short_name;'

        result = session.execute(statement)

        supported = dict()

        for row in result:
            supported[row[1]] = {'description': row[2], 'options': row[3]}

        return supported