Use Table Occurrences (rather than Layout context)

On the FileMaker side, the Tableau Connector method uses Tables (Table Occurrences) rather than Layout context to define tables and fields for extract. While the Web Data Connector will get the fields (columns) from those available on a layout, then use the Data API to extract the data, the Tableau Connector method connects directly to each table by referencing a corresponding Table Occurrence, then extracts data via JDBC.