Add example for importing CSV file

[sequba]

Description

As @kirszenbaum pointed out in https://github.com/handsontable/hyperformula/pull/1099#issuecomment-1317499945:

We could use an example that shows integration with a CSV parser library (analogically to the ExcelJS example)

Links

#1099 #992

Type of issue

• [x] Missing documentation
• [ ] Error in the documentation
• [ ] Request for a demo
• [ ] Request for a tutorial, guide etc.
• [ ] Other issues, suggestions or ideas