- Checking and return error for invalid sheet name instead of trim invalid characters
- Add error return for the 4 functions: `DeleteSheet`, `GetSheetIndex`, `GetSheetVisible` and `SetSheetName`
- Export new error 4 constants: `ErrSheetNameBlank`, `ErrSheetNameInvalid`, `ErrSheetNameLength` and `ErrSheetNameSingleQuote`
- Rename exported error constant `ErrExistsWorksheet` to `ErrExistsSheet`
- Update unit tests for 90 functions: `AddChart`,  `AddChartSheet`, `AddComment`, `AddDataValidation`, `AddPicture`, `AddPictureFromBytes`, `AddPivotTable`, `AddShape`, `AddSparkline`, `AddTable`, `AutoFilter`, `CalcCellValue`, `Cols`, `DeleteChart`, `DeleteComment`, `DeleteDataValidation`, `DeletePicture`, `DeleteSheet`, `DuplicateRow`, `DuplicateRowTo`, `GetCellFormula`, `GetCellHyperLink`, `GetCellRichText`, `GetCellStyle`, `GetCellType`, `GetCellValue`, `GetColOutlineLevel`, `GetCols`, `GetColStyle`, `GetColVisible`, `GetColWidth`, `GetConditionalFormats`, `GetDataValidations`, `GetMergeCells`, `GetPageLayout`, `GetPageMargins`, `GetPicture`, `GetRowHeight`, `GetRowOutlineLevel`, `GetRows`, `GetRowVisible`, `GetSheetIndex`, `GetSheetProps`, `GetSheetVisible`, `GroupSheets`, `InsertCol`, `InsertPageBreak`, `InsertRows`, `MergeCell`, `NewSheet`, `NewStreamWriter`, `ProtectSheet`, `RemoveCol`, `RemovePageBreak`, `RemoveRow`, `Rows`, `SearchSheet`, `SetCellBool`, `SetCellDefault`, `SetCellFloat`, `SetCellFormula`, `SetCellHyperLink`, `SetCellInt`, `SetCellRichText`, `SetCellStr`, `SetCellStyle`, `SetCellValue`, `SetColOutlineLevel`, `SetColStyle`, `SetColVisible`, `SetColWidth`, `SetConditionalFormat`, `SetHeaderFooter`, `SetPageLayout`, `SetPageMargins`, `SetPanes`, `SetRowHeight`, `SetRowOutlineLevel`, `SetRowStyle`, `SetRowVisible`, `SetSheetBackground`, `SetSheetBackgroundFromBytes`, `SetSheetCol`, `SetSheetName`, `SetSheetProps`, `SetSheetRow`, `SetSheetVisible`, `UnmergeCell`, `UnprotectSheet` and
`UnsetConditionalFormat`
- Update documentation of the set style functions
Co-authored-by: Nguoweikuang <weikuang.guo@shopee.com>