Add new rows to the grid when a paste operation doesn't fit

This example uses the grid callback:

processDataFromClipboard(params)

To process a Clipboard paste operation, to calculate whether the paste extends beyond the last row, adding new rows to fit them if it does.

vanilla JS: https://plnkr.co/edit/HfowCZwPGdCHYOVPfMvQ?p=preview 

React: https://next.plnkr.co/edit/lM3OtCQxpJdapHQt