Getting and setting cell value

[Javen O'Neal]

Would it be a good idea to add the following two methods to the cell
interface so that the switch(cell.getCellType()) code can be taken care of
in POI?

interface org.apache.poi.ss.usermodel.Cell {
    Object getCellValue();
    void setCellValue(Object value);
}

We would have to decide how to handle formulas, but otherwise the code is
straightforward. I think this would go a long way to making the POI API
easier to use.

Any objections?