Synchronise Data with Rows/Columns Added/Removed

[DillonHammill]

At the moment, the sync button only works when the dimensionality of the data subset remains unchanged. For example, if you subset the data and add a new column this will throw an error when you attempt to sync the data to the original dataset. There is some complexity in adding support for this operation as we will need to know which of the original columns/rows remain and which ones have been added. This would require changing the return of dataEdit to include the row/column indices.