Decide on how to copy the data most efficiently

[freddie-freeloader]

• [ ] Sheetreader-R, Sheetreader-Python, & newRow() use the following method (copy by row):

  for (currentBuffer = 0; currentBuffer < maxBuffers; ++currentBuffer) {
      for (currentThread = 0; currentThread < mCells.size(); ++currentThread) {
          for (currentCell = 0; currentCell <= cells.size(); ++currentCell) {
                  ...
  }}}

  So they copy row by row, since this is how sheetreader stores the data in mCells

• [ ] In theory, we could do it like this (copy by column):

  for(column : columns) {
  for (auto currentLocation : orderedLocations) { ... } }