This commit adds several new features to the table library while main…

[vrancurel]

…taining

full backward compatibility with the existing Table interface:

• CSV/JSON Export: ExportCSV() and ExportJSON() methods for data export
• Table Sorting: SortBy() and SortByMultiple() with comparison functions (StringComparison, NumericalComparison, CurrencyComparison, etc.)
• Table Transpose: Transpose() method to swap rows and columns
• Alternating Row Formatting: WithStandoutFormatter() for zebra-striped tables