Variable SheetCellRendererConst

CellRender is used for rendering text values on ICell.

Some of the features are:

1. Text Color
2. Horizontal Alignment (Left, Right, Center, Justify)
3. Vertical Alignment (Top, Middle, Bottom)
4. Spacing formatting (*, ?)
5. Decimal rounding
6. Overflow Character
7. Text Wrapping
8. Text Rotation
9. Indentions
10. Underline (Accounting, Standard, Double, Single)
11. Scaling
12. Super/Subscript
13. Formulas